Parts catalog
390 distinct parts across 1593 placements. 193 carry a manufacturer datasheet link; the remainder are generic passives and connectors.
| Part | Manufacturer | Example use | Boards | Datasheet |
|---|---|---|---|---|
| PMOD PLUG 2x6 | generic | PMOD peripheral plug (Digilent spec 1.2) | 94 | TBD |
| GRM188R71C104KA01D | Murata | VM high-frequency decoupling at the driver | 87 | — |
| RC0603FR-07100RL | Yageo | Series protection on the module-driven E1A line | 75 | ↗ |
| RC0603FR-0710KL | Yageo | STBY pull-down: both bridges disabled until the host drives STBY high | 64 | ↗ |
| GRM21BR61A106KE19L | Murata | Digital rail bulk | 37 | — |
| RC0603FR-074K7L | Yageo | I2C SDA pull-up | 27 | ↗ |
| SCL PULL-UP | — | Cut to remove the SCL pull-up when chaining modules | 23 | — |
| SDA PULL-UP | — | Cut to remove the SDA pull-up when chaining modules | 23 | — |
| VM IN 2.5-13.5V | Phoenix Contact | Motor supply input: 1 VM (2.5-13.5 V), 2 GND (joins PMOD GND here) | 21 | TBD |
| GRM188R71A105KA61D | Murata | Analog 3V3 bulk for the sense chain | 17 | — |
| RC0603FR-071KL | Yageo | E1A RC filter series element | 14 | ↗ |
| RC0603FR-07100KL | Yageo | STATUS divider top (sized for 24 V; repopulate for lower VIN - see README) | 11 | ↗ |
| GRM21BR61E106KA73L | Murata | VM bulk reservoir for motor switching current | 7 | — |
| RC0603FR-071ML | Yageo | Crystal feedback bias resistor (per WIZnet reference) | 7 | ↗ |
| APT1608SGC | Kingbright | GPA0 indicator LED | 6 | ↗ |
| GRM1885C1H103JA01D | Murata | Filter across the RTD force leads | 6 | — |
| GRM188R71H103KA01D | Murata | E1A RC filter capacitor (with 1k: fc ~16 kHz) | 6 | — |
| ADS7042IDCUR | Texas Instruments | 12-bit 1 MSPS SPI SAR ADC, single-ended | 5 | ↗ |
| GRM188R71H104KA93D | Murata | VM high-frequency decoupling at the driver (50 V rated for the 45 V rail) | 5 | — |
| TC33X-2-103E | Bourns | Contrast trimmer: ends across EXT_5V/GND, wiper to VO | 5 | ↗ |
| RC0603FR-07330RL | Yageo | Green (link) LED current limit | 4 | ↗ |
| SM04B-SRSS-TB(LF)(SN) | JST | Qwiic / STEMMA QT socket: 1 GND, 2 3V3, 3 SDA, 4 SCL | 4 | ↗ |
| PHASES (U/V/W) | Phoenix Contact | Motor phases: 1 OUTU, 2 OUTV, 3 OUTW | 4 | TBD |
| AO3400A | Alpha & Omega | Channel 1 low-side N-FET (30 V 5.7 A, logic level) | 3 | ↗ |
| AO3401A | Alpha & Omega | Channel 1 high-side P-FET (-30 V -4 A) | 3 | ↗ |
| BAT54S,215 | Nexperia | Input clamp: VIN held between GND-0.3V and 3V3+0.3V ahead of the buffer | 3 | ↗ |
| DMP4015SSS-13 | Diodes Incorporated | Reverse-polarity ideal-diode P-FET: drain to battery, source to load, gate to GND | 3 | ↗ |
| GND | — | Electrical test point | 3 | — |
| LMV7219M5X | Texas Instruments | 7 ns push-pull comparator, 2.7-5 V, SOT-23-5 | 3 | ↗ |
| RC0603JR-070RL | Yageo | VBUS link (placeholder for a 200 mA polyfuse - none verified in stock libs) | 3 | ↗ |
| PIR BREAKOUT SOCKET | generic | Socket for a 3.3 V mini PIR module, pin order VCC/OUT/GND | 3 | TBD |
| ST7735 SOCKET (1x8) | generic | Socket for the common 1.8in ST7735 SPI TFT breakout | 3 | TBD |
| USB4105-GF-A-120 | GCT | USB-C receptacle, USB 2.0, 16 pins (UFP, 5.1k CC pull-downs) | 3 | ↗ |
| VBUS_RAW | — | Electrical test point | 3 | — |
| 2N7002LT1G | onsemi | N-channel MOSFET 60 V 115 mA, SOT-23, EN gate switch | 2 | ↗ |
| ADDR 0x76/0x77 | — | I2C address select: 1-2 SDO low 0x76 (default), 2-3 SDO high 0x77 | 2 | — |
| APT1608SURCK | Kingbright | Traffic red LED, parallel with bar segment 0 | 2 | ↗ |
| B6252HB-NPP3G-50 | Amphenol RF | BNC input, parallel with J2 (stock footprint verified) | 2 | ↗ |
| BLM18AG121SN1D | Murata | 3V3 -> 3V3A analog-rail isolation bead (reference: HH-1M1608-121JT class) | 2 | — |
| BZT52H-C10,115 | Nexperia | 10 V gate-source clamp for Q1 (cathode to source) | 2 | ↗ |
| GRM1885C1H331JA01D | Murata | — | 2 | — |
| GRM1885C1H472JA01D | Murata | — | 2 | — |
| GRM188R61A475KE15D | Murata | 5VOUT regulator output capacitor (datasheet: 2.2-4.7 uF) | 2 | — |
| GRM188R61C105KA93D | Murata | ADS7042 reference/bulk decoupling | 2 | — |
| GRM188R71H223KA01D | Murata | Charge pump flying capacitor CPO-CPI | 2 | — |
| HR911105A | Hanrun | RJ45 MagJack, integrated 10/100 magnetics + green/yellow LEDs | 2 | ↗ |
| ICS-43434 | TDK InvenSense | 24-bit I2S digital MEMS microphone, -26 dBFS, 65 dB SNR | 2 | ↗ |
| INA226AIDGSR | Texas Instruments | 36 V high-side current/power monitor, I2C, alert | 2 | ↗ |
| MCP3008-I/SL | Microchip | 8-channel 10-bit SAR ADC, SPI, 200 ksps | 2 | ↗ |
| MKDS 1,5/4-5,08 (1715048) | Phoenix Contact | RTD terminal: 1 FORCE+, 2 SENSE+ (RTDIN+), 3 SENSE- (RTDIN-), 4 FORCE- | 2 | — |
| OPA356AIDR | Texas Instruments | 200 MHz CMOS rail-to-rail op-amp, unity buffer driving the ADC input | 2 | ↗ |
| RC0603FR-0710RL | Yageo | TX center-tap feed from 3V3A (reference: 10R + 22nF) | 2 | ↗ |
| RC0603FR-0718KL | Yageo | AO divider bottom (5 V x 18/28 = 3.21 V < 3.3 V AVDD) | 2 | ↗ |
| RC0603FR-07220RL | Yageo | Segment A cathode ballast (host pin sinks segment current) | 2 | ↗ |
| RC0603FR-072K2L | Yageo | Electret bias feed from the MAX9814 MICBIAS output | 2 | ↗ |
| RC0603FR-0747KL | Yageo | — | 2 | ↗ |
| RC0603FR-0749R9L | Yageo | TX+ line pull-up (WIZnet reference termination) | 2 | ↗ |
| SKQGABE010 | Alps Alpine | GPB0 tactile button (active low, internal pull-up) | 2 | ↗ |
| SIG IN (0-2V / 0-20V) | generic | Signal input header: 1 signal, 2 GND (parallel with the BNC) | 2 | TBD |
| SPARE IN (H1/H2/GND) | generic | Spare conditioned inputs: 1 H1, 2 H2, 3 GND (hall, limit switch, index) | 2 | TBD |
| ENCODER 1 (3V3/GND/A/B) | generic | Motor 1 encoder socket: 1 3V3, 2 GND, 3 phase A, 4 phase B | 2 | ↗ |
| RCWL-1601 SOCKET | generic | Socket for a 3.3 V HC-SR04-form-factor ultrasonic ranger | 2 | TBD |
| JOYSTICK SOCKET (1x5) | generic | Socket for the common 5-pin XY thumbstick breakout | 2 | TBD |
| 10V zener | Diodes Inc. | Gate-source zener clamp: Vsg <= 10 V at any VIN in range | 2 | ↗ |
| TVS2200DRVR | Texas Instruments | 22 V flat-clamp VBUS surge and IEC ESD protector | 2 | ↗ |
| USBLC6-2SC6 | STMicroelectronics | USB 2.0 ESD protection array on D+/D- | 2 | ↗ |
| ~WAKE SEL | — | ~WAKE source: 1-2 GND always awake (default), 2-3 host-driven ECO2_WAKE_N on PMOD pin 2 | 1 | — |
| 0R SHIELD LINK | — | — | 1 | — |
| 1:1 (CUT FOR 10:1) | — | Bridged (default) = 1:1 direct input; cut = 10.1:1 divider via R1/R2 | 1 | — |
| 100k 1% | — | — | 1 | — |
| 100nF 10V X7R | — | — | 1 | — |
| 10uF 10V X7R | — | — | 1 | — |
| 1715721 | — | Optional 5.08 mm full-load terminal | 1 | — |
| 1N4148WS,115 | Nexperia | Flyback clamp across the magnetic buzzer coil (cathode to 3V3) | 1 | ↗ |
| 1V1 BREADBOARD LIGHT LOAD | — | Optional duplicated light-load header | 1 | — |
| 1V8 BREADBOARD LIGHT LOAD | — | Optional duplicated light-load header | 1 | — |
| 2-WIRE - | — | Bridges RTDIN- to FORCE- for 2-wire RTDs; cut for 3-wire and 4-wire sensing | 1 | — |
| 2.2nF 50V C0G ITIMER | — | — | 1 | — |
| 2/3-WIRE + | — | Bridges FORCE+ to RTDIN+ for 2/3-wire RTDs; cut for true 4-wire sensing | 1 | — |
| 215k 1% | — | — | 1 | — |
| 24LC256-I/SN | Microchip | 32 KB I2C EEPROM, byte/page writable, addr 0x50/0x51 via A0 | 1 | ↗ |
| 25SVPF47M | Panasonic | — | 1 | — |
| 3.3k | — | — | 1 | — |
| 3034 | Keystone | CR2032 backup cell in Keystone 3034 SMD 20 mm coin-cell holder | 1 | ↗ |
| 330pF 50V C0G dVdt | — | — | 1 | — |
| 374k 1% | — | — | 1 | — |
| 3S UVLO 9V | — | Bridge for 3S packs: parallels R8 into the divider, trip ON 9.00 V / OFF 8.20 V | 1 | — |
| 3V3 BREADBOARD LIGHT LOAD | — | Optional duplicated light-load header | 1 | — |
| 4.7uF 50V X7R | — | — | 1 | — |
| 43650-0210 | Molex | Tape-and-reel Micro-Fit 3.0 full-load output | 1 | ↗ |
| 47k | — | — | 1 | — |
| 5V0 BREADBOARD LIGHT LOAD | — | Optional duplicated light-load header | 1 | — |
| 67643-2910 | Molex | USB-A receptacle, THT horizontal, for the low-speed device under test | 1 | ↗ |
| 74HC14D,653 | Nexperia | Hex inverting Schmitt trigger | 1 | ↗ |
| 74HC595D,118 | Nexperia | 8-bit serial-in parallel-out shift register with output latch | 1 | ↗ |
| 900k 1% | — | — | 1 | — |
| 976R 1% (3.4A nominal) | — | — | 1 | — |
| A0 | — | A0 select: 1-2 GND (default), 2-3 VDD | 1 | — |
| A0 0x50/0x51 | — | EEPROM address: 1-2 A0 low 0x50 (default), 2-3 A0 high 0x51 (A1/A2 tied low) | 1 | — |
| A1 | — | A1 select: 1-2 GND (default), 2-3 VDD | 1 | — |
| AD9280ARSZ | Analog Devices | 8-bit 32 MSPS parallel ADC, single supply | 1 | ↗ |
| ADDR 0x1C/0x1E | — | I2C address select: 1-2 SA1 low 0x1C (default), 2-3 SA1 high 0x1E | 1 | — |
| ADDR 0x20/0x21 | — | I2C address: 1-2 A0 low 0x20 (default), 2-3 A0 high 0x21 (A1/A2 fixed low) | 1 | — |
| ADDR 0x29/0x49 | — | I2C address: 1-2 GND 0x29 (default), 2-3 VDD 0x49, all open (cut 1-2) float 0x39 | 1 | — |
| ADDR 0x44/0x45 | — | I2C address select: 1-2 ADDR low 0x44 (default), 2-3 ADDR high 0x45 | 1 | — |
| ADDR 0x48/0x49 | — | I2C address select: 1-2 ADDR to GND 0x48 (default), 2-3 ADDR to VDD 0x49 | 1 | — |
| ADDR 0x5A/0x5B | — | I2C address select: 1-2 ADDR low 0x5A (default), 2-3 ADDR high 0x5B | 1 | — |
| ADDR 0x60/0x61 | — | MCP4725 address: 1-2 A0 to GND 0x60 (default), 2-3 A0 to VDD 0x61 | 1 | — |
| ADS1115IDGSR | Texas Instruments | 16-bit 4-channel sigma-delta ADC with PGA and comparator | 1 | ↗ |
| ADXL343BCCZ-RL7 | Analog Devices | 3-axis digital accelerometer, +/-2g to +/-16g, SPI/I2C | 1 | ↗ |
| AH1806-W-7 | Diodes Incorporated | Omnipolar hall-effect switch, 2.5-5.5 V, open-drain output | 1 | ↗ |
| AHLB MODE | — | Open (default) = output active-high; bridge to 3V3 = active-low | 1 | — |
| ANALOG IN | — | Analog input header: AIN0-AIN3 and GND reference | 1 | — |
| ANT: uFL/PAD | — | Antenna route: 1-2 (default) u.FL J2; 2-3 wire solder pad J3 | 1 | — |
| AP2204K-5.0TRG1 | Diodes Incorporated | 5 V 150 mA LDO: regulates VSERVO down to the 74HCT541 logic rail | 1 | ↗ |
| AP63203WU-7 | Diodes Incorporated | 3.8-32 V in, 3.3 V / 2 A synchronous buck | 1 | ↗ |
| AP63205WU-7 | Diodes Incorporated | 3.8-32 V in, 5 V / 2 A synchronous buck | 1 | ↗ |
| APDS-9251-001 | Broadcom | Digital RGB + IR color and ambient-light sensor, I2C, interrupt output | 1 | ↗ |
| APDS-9301-020 | Broadcom | Miniature ambient-light photo sensor, dual channel, I2C, lux output | 1 | ↗ |
| APDS-9960 | Broadcom | Digital proximity, ambient light, RGB, and gesture sensor, I2C | 1 | ↗ |
| APT1608SYCK | Kingbright | Traffic yellow LED, parallel with bar segment 1 | 1 | ↗ |
| ATECC608B-SSHDA-T | Microchip | CryptoAuthentication secure element, ECC P-256, I2C, SOIC-8 | 1 | ↗ |
| B340A-13-F | Diodes Incorporated | Negative VBUS transient clamp | 1 | ↗ |
| BACKLIGHT | — | Backlight enable, bridged by default; cut to kill the backlight (saves ~120 mA) | 1 | — |
| BAT54H,115 | — | — | 1 | — |
| BIAS A | — | Open default: bridge (with JP5) at exactly one node for failsafe bias | 1 | — |
| BIAS B | — | Open default: bridge (with JP4) at exactly one node for failsafe bias | 1 | — |
| BL: 3V3 / PWM | — | Backlight source select: 1-2 (default) always-on 3V3, 2-3 PWM from PMOD 9 | 1 | — |
| BME280 | Bosch Sensortec | Combined temperature, humidity, and pressure sensor | 1 | ↗ |
| BMP280 | Bosch Sensortec | Absolute barometric pressure and temperature sensor, 300-1100 hPa, I2C/SPI | 1 | ↗ |
| BPW34S | ams-OSRAM | Silicon PIN photodiode, 850 nm peak, SMD | 1 | ↗ |
| BREADBOARD LIGHT LOAD <=0.5A | — | Optional duplicated light-load header | 1 | — |
| BREADBOARD OUT (LIGHT LOAD) | — | — | 1 | — |
| BSS138 | onsemi | Bidirectional open-collector level shifter, PS/2 CLK line | 1 | ↗ |
| CA56-12SEKWA | Kingbright | 4-digit 0.56in common-anode 7-segment display, super bright orange | 1 | ↗ |
| CC1 | — | — | 1 | — |
| CC1 | — | Electrical test point | 1 | — |
| CC1 | — | Low-capacitance USB-PD CC probe pad | 1 | — |
| CC2 | — | — | 1 | — |
| CC2 | — | Electrical test point | 1 | — |
| CC2 | — | Low-capacitance USB-PD CC probe pad | 1 | — |
| CCS811B-JOPD500 | ams (ScioSense) | Digital eCO2 and TVOC gas sensor, I2C, on-chip MCU with baseline engine | 1 | ↗ |
| CDSOT236-0504C | Bourns | 4-channel ESD/TVS array on the keypad-side ROW lines (fit for harsh ESD) | 1 | ↗ |
| CH1 DIR (1-2=IN) | — | CH1 direction: 1-2 (default) input 5->3.3, 2-3 output 3.3->5 | 1 | — |
| CH2 DIR (1-2=IN) | — | CH2 direction: 1-2 (default) input 5->3.3, 2-3 output 3.3->5 | 1 | — |
| CH3 DIR (1-2=IN) | — | CH3 direction: 1-2 (default) input 5->3.3, 2-3 output 3.3->5 | 1 | — |
| CH4 DIR (1-2=IN) | — | CH4 direction: 1-2 (default) input 5->3.3, 2-3 output 3.3->5 | 1 | — |
| CMC-4013-SMT-TR | CUI Devices | Electret condenser microphone capsule, SMT, omnidirectional | 1 | ↗ |
| CONTROL / SEQUENCING | — | Optional control header | 1 | — |
| CP2102N-A02-GQFN28 | Silicon Labs | USB 2.0 full-speed to UART bridge, QFN-28 (no VIO pin: I/O at internal VDD 3.3 V) | 1 | ↗ |
| CRA2512-FZ-R100ELF | Bourns | Current shunt (kelvin-route the sense traces at layout) | 1 | — |
| CT10-1540-G4 | Coto Technology | SPST-NO reed switch, 10-15 AT sensitivity, SMD | 1 | ↗ |
| DM3AT-SF-PEJM5 | Hirose | Hirose DM3AT-SF-PEJM5 push-push microSD socket with detect switch | 1 | ↗ |
| DP5T SELECTOR DEV | — | Optional selector breadboard header | 1 | — |
| DRV8871DDA | Texas Instruments | Brushed DC motor driver, 3.6 A peak, 6.5-45 V, resistor-set current limit | 1 | ↗ |
| DS18B20U+ | Analog Devices | Programmable-resolution 1-Wire digital thermometer | 1 | ↗ |
| DS3231MZ+TRL | Analog Devices | I2C RTC, MEMS resonator +/-5 ppm, battery backup, 2 alarms, addr 0x68 | 1 | ↗ |
| EC11E15244G1 | Alps Alpine | Rotary encoder, 30 detents, 15 pulses, with push switch | 1 | ↗ |
| EN FROM HOST | — | Bridged (default): PMOD pin 1 controls ESP EN. Cut to hand EN to R1 only. | 1 | — |
| EN_1V1 | — | Electrical test point | 1 | — |
| EN_1V8 | — | Electrical test point | 1 | — |
| EN_3V3 | — | Electrical test point | 1 | — |
| EN_5V0 | — | Electrical test point | 1 | — |
| ESP32-C3-WROOM-02-N4 | Espressif | WiFi 4 + BLE 5 module, ESP32-C3, 4 MB flash, PCB antenna | 1 | ↗ |
| EXT PROBE (DNP) | — | Optional external 1-Wire probe header | 1 | — |
| FAULT RED | — | — | 1 | — |
| FORCE2 SEL | — | FORCE2 per datasheet: 1-2 GND for 2/4-wire (default), 2-3 FORCE+ for 3-wire | 1 | — |
| GAIN 12/9/6dB | — | Open (default): GAIN floats = 9 dB; bridge 1-2 GND = 12 dB; bridge 2-3 3V3 = 6 dB | 1 | — |
| GAIN 50/40/60dB | — | MAX9814 gain strap: 1-2 GND 50 dB (default), 2-3 VDD 40 dB, open 60 dB | 1 | — |
| GRM1885C1H100JA01D | Murata | Sensitivity trim capacitor, 0-50 pF range; fit/adjust to tune (larger C = less sensitive) | 1 | — |
| GRM1885C1H180JA01D | Murata | Crystal load cap (2x(CL-Cstray), CL=12pF, Cstray~3pF) | 1 | — |
| GRM1885C1H222JA01D | Murata | — | 1 | — |
| GRM1885C1H223JA01D | Murata | DNP: alternative integrator capacitor for time-constant experiments | 1 | — |
| GRM1885C1H471JA01D | Murata | VDDCR 470pF per datasheet | 1 | — |
| GRM188R61A225KE34D | Murata | Amplifier DC-offset capacitor (datasheet typical application) | 1 | — |
| GRM188R71C105KA12D | Murata | — | 1 | — |
| GRM188R71C474KA88D | Murata | MICBIAS bypass (datasheet typical application) | 1 | — |
| GRM188R71E105KA12D | Murata | AP2204K input capacitor (datasheet minimum 1 uF ceramic) | 1 | — |
| GRM188R71H472KA01D | Murata | Split-termination common-mode filter capacitor | 1 | — |
| GRM188R71H682KA01D | Murata | RX+ AC termination cap | 1 | — |
| GRM21BR61A475KA73L | Murata | VCSEL pulse-current reservoir | 1 | — |
| GRM21BR71H105KA12L | Murata | — | 1 | — |
| GRM31CR71E106KA12L | Murata | — | 1 | — |
| GRM31CR71H106KA12L | Murata | VM bulk reservoir for motor switching current | 1 | — |
| GRM31CR71H225KA88L | Murata | — | 1 | — |
| GRM31CR71H475KA12L | Murata | — | 1 | — |
| GRM32ER60J107ME20L | Murata | — | 1 | — |
| GRM32ER71A476ME15L | Murata | — | 1 | — |
| GRM32ER71H106KA12L | Murata | — | 1 | — |
| HUSB_EN_N | — | Electrical test point | 1 | — |
| HUSB238A-BB001 | Hynetek | Autonomous USB PD sink controller | 1 | ↗ |
| HX711 | Avia Semiconductor | 24-bit sigma-delta ADC for weigh scales, 2-wire interface | 1 | ↗ |
| ICM-20602 | TDK InvenSense | High-performance 6-axis IMU, 3-axis gyro + 3-axis accel, SPI/I2C, 1 kB FIFO | 1 | ↗ |
| INA219AIDR | Texas Instruments | High-side current shunt and power monitor, 26 V bus | 1 | ↗ |
| INA240A1D | Texas Instruments | Bidirectional current-sense amp, 20 V/V, enhanced PWM rejection | 1 | ↗ |
| JS102011SAQN | C&K | SPDT slide switch between 3V3 and GND | 1 | ↗ |
| KCSC02-105 | Kingbright | Single-digit 0.2in common-cathode 7-segment display, super bright orange | 1 | ↗ |
| L/R SLOT | — | I2S slot select: 1-2 LR to GND = left/WS-low (default), 2-3 LR to VDD = right/WS-high | 1 | — |
| L77HDE15SD1CH4F | Amphenol CS | High-density DSUB-15 female socket, right angle (VGA) | 1 | — |
| LAN8720A-CP-TR | Microchip | 10/100 Ethernet PHY, RMII, VQFN-24 | 1 | ↗ |
| LIS3MDLTR | STMicroelectronics | 3-axis magnetometer, +/-4 to +/-16 gauss, I2C/SPI | 1 | ↗ |
| LOAD PATH | — | 1 supply-in, 2 load-out (through shunt), 3 GND reference | 1 | — |
| LSM6DSMTR | STMicroelectronics | 6-axis IMU, 3-axis accelerometer + 3-axis gyroscope, SPI/I2C, 4 kB FIFO | 1 | ↗ |
| MAX31855KASA+ | Analog Devices | Type-K thermocouple to digital converter with cold-junction compensation | 1 | ↗ |
| MAX31865AAP+ | Analog Devices | RTD-to-digital converter, 15-bit ratiometric, 2/3/4-wire PT100/PT1000 | 1 | ↗ |
| MAX3485ESA+ | Analog Devices | 3.3 V half-duplex RS-485/RS-422 transceiver, 10 Mbps | 1 | ↗ |
| MAX7219CWG+ | Analog Devices (Maxim) | Serially interfaced 8-digit/8x8 LED display driver, 5 V | 1 | ↗ |
| MAX9814ETD+T | Analog Devices | Microphone amplifier with AGC and low-noise microphone bias | 1 | ↗ |
| MAX98357AETE+T | Analog Devices (Maxim) | PCM-input class-D mono amplifier, I2S, 3.2 W at 5 V / ~1.4 W at 3.3 V into 4R | 1 | ↗ |
| MCP23017-E/SS | Microchip | 16-bit I2C GPIO expander with interrupts, SSOP-28 | 1 | ↗ |
| MCP2542WFD-E/MF | Microchip | CAN FD transceiver, 8 Mbps, VIO for 3.3 V logic, wake-on-CAN standby | 1 | ↗ |
| MCP3202-BI/SN | Microchip | Dual-channel 12-bit SPI SAR ADC, 100 ksps | 1 | ↗ |
| MCP4725A0T-E/CH | Microchip | 12-bit DAC with EEPROM, I2C, VDD-referenced rail-to-rail output | 1 | ↗ |
| MCP4822-E/SN | Microchip | Dual 12-bit DAC, SPI, internal 2.048 V reference, 1x/2x gain | 1 | ↗ |
| MKDS 1,5/2-5,08 (1715022) | Phoenix Contact | 5 V / 2 A output: 1 5V_OUT, 2 GND | 1 | — |
| MKDS 3/2-5,08 (1711022) | Phoenix Contact | Battery input: 1 BATT+ (6.4-12.6 V), 2 GND. XT60 pigtail lands here. | 1 | — |
| MS1=GND | — | MS1/AD0 strap, bridged to GND (cut + bodge to 3V3 for address/microstep change) | 1 | — |
| MS2=GND | — | MS2/AD1 strap, bridged to GND | 1 | — |
| OUT1 AMBER | — | — | 1 | — |
| OUT2 AMBER | — | — | 1 | — |
| OUTPUT ENABLE | — | Bridged: ~OE1/~OE2 grounded, outputs enabled. Cut: R17 pulls enables high, outputs hi-Z | 1 | — |
| PD DIAGNOSTIC I2C | — | Optional PD diagnostic header | 1 | — |
| PD_15V | — | Electrical test point | 1 | — |
| PD_SINK_EN_N | — | Electrical test point | 1 | — |
| PD_VBUS | — | Electrical test point | 1 | — |
| PG_1V1 | — | Electrical test point | 1 | — |
| PG_1V8 | — | Electrical test point | 1 | — |
| PG_3V3 | — | Electrical test point | 1 | — |
| PG_5V0 | — | Electrical test point | 1 | — |
| PMEG4010EH,115 | Nexperia | Negative output transient clamp | 1 | ↗ |
| PMOS_GATE | — | Electrical test point | 1 | — |
| POWER OUT | — | — | 1 | — |
| PT10MV10-103A2020-S | Piher | Rotary thumb pot 1: full-rail, wiper to CH0 | 1 | ↗ |
| PTA2043-2015CPB103 | Bourns | Slide pot (20 mm travel): full-rail, wiper to CH2 | 1 | ↗ |
| PWR: PMOD/EXT | — | ESP rail source: 1-2 (default) PMOD 3V3; 2-3 external 3.3 V from J3 | 1 | — |
| QRE1113GR | onsemi | Reflective object sensor, IR LED + phototransistor, SMD | 1 | ↗ |
| RATE 10/80Hz | — | HX711 RATE strap: 1-2 GND 10 Hz (default), 2-3 DVDD 80 Hz | 1 | — |
| RC0603FR-0711K3L | Yageo | UVLO divider bottom: 2S trip ON 5.96 V / OFF 5.36 V | 1 | ↗ |
| RC0603FR-0711KL | Yageo | — | 1 | ↗ |
| RC0603FR-07120RL | Yageo | Bus termination (behind JP3) | 1 | ↗ |
| RC0603FR-0712K1L | Yageo | RBIAS: exact 12.1k 1% to GND per datasheet | 1 | ↗ |
| RC0603FR-0712K4L | Yageo | EXRES1 bias: exact 12.4k 1% to GND required by the W5500 datasheet | 1 | ↗ |
| RC0603FR-0713KL | Yageo | — | 1 | ↗ |
| RC0603FR-07140KL | Yageo | — | 1 | ↗ |
| RC0603FR-0715KL | Yageo | Host-side D- idle pull-down (USB LS: device's 1.5k on D- wins at attach) | 1 | ↗ |
| RC0603FR-07162KL | Yageo | — | 1 | ↗ |
| RC0603FR-0716K5L | Yageo | — | 1 | ↗ |
| RC0603FR-07187KL | Yageo | — | 1 | ↗ |
| RC0603FR-07191KL | Yageo | — | 1 | ↗ |
| RC0603FR-0719K1L | Yageo | — | 1 | ↗ |
| RC0603FR-071K02L | Yageo | RED DAC bit 2 (2^2) | 1 | ↗ |
| RC0603FR-071K5L | Yageo | MDIO bus pull-up (1.5k per LAN8720A datasheet) | 1 | ↗ |
| RC0603FR-071M74L | Yageo | — | 1 | ↗ |
| RC0603FR-0721KL | Yageo | — | 1 | ↗ |
| RC0603FR-0722K1L | Yageo | — | 1 | ↗ |
| RC0603FR-0723K2L | Yageo | — | 1 | ↗ |
| RC0603FR-0728KL | Yageo | Segment current set: RSET 28k -> ISEG ~20 mA at VLED 2.0 V (datasheet Table 11) | 1 | ↗ |
| RC0603FR-072K05L | Yageo | RED DAC bit 1 (2^1) | 1 | ↗ |
| RC0603FR-072KL | Yageo | R-2R bit leg for D0 (2R) | 1 | ↗ |
| RC0603FR-0730K9L | Yageo | Current-limit set: I_TRIP = 64 V / R_ILIM(kOhm) = 2.07 A | 1 | ↗ |
| RC0603FR-0733K2L | Yageo | — | 1 | ↗ |
| RC0603FR-0733KL | Yageo | — | 1 | ↗ |
| RC0603FR-0738K3L | Yageo | — | 1 | ↗ |
| RC0603FR-07390RL | Yageo | Failsafe bias: A to 3V3 (behind JP4). 390R holds A-B at 236 mV with both bus ends terminated (60R); 560R gave only 168 mV, under the 200 mV spec | 1 | ↗ |
| RC0603FR-0739KL | Yageo | GATE_STATUS divider top, sized for 12.6 V (12.6*10/49 = 2.57 V at the tap); fit 18k for 2S-only systems, 100k for 24 V per axa-012 | 1 | ↗ |
| RC0603FR-073K3L | Yageo | — | 1 | ↗ |
| RC0603FR-073KL | Yageo | — | 1 | ↗ |
| RC0603FR-0740K2L | Yageo | — | 1 | ↗ |
| RC0603FR-0746K4L | Yageo | UVLO divider top (R5 in datasheet Fig.22) | 1 | ↗ |
| RC0603FR-07470KL | Yageo | — | 1 | ↗ |
| RC0603FR-07470RL | Yageo | 3.3 V power-good LED resistor (~2.5 mA) | 1 | ↗ |
| RC0603FR-0747RL | Yageo | Receiver supply RC filter series element (datasheet app circuit) | 1 | ↗ |
| RC0603FR-074K12L | Yageo | RED DAC bit 0 (2^0) | 1 | ↗ |
| RC0603FR-07511RL | Yageo | RED DAC bit 3 (MSB) | 1 | ↗ |
| RC0603FR-075K1L | Yageo | CC1 pull-down: UFP, advertises default USB power sink | 1 | ↗ |
| RC0603FR-0760K4L | Yageo | — | 1 | ↗ |
| RC0603FR-0760R4L | Yageo | Split termination, CANH half (2x60.4R = 120R differential) | 1 | ↗ |
| RC0603FR-0768RL | Yageo | D- series element (bidirectional; sets source impedance both ways) | 1 | ↗ |
| RC0603FR-076K04L | Yageo | — | 1 | ↗ |
| RC0603FR-076K2L | Yageo | REFSENSE divider top: VREF = 1.25 V x (1 + R3/R4) = 2.02 V | 1 | ↗ |
| RC0603FR-078K06L | Yageo | — | 1 | ↗ |
| RC0603FR-07900KL | Yageo | — | 1 | ↗ |
| RC0603FR-07910KL | Yageo | Divider top leg; 910k/100k = 10.1:1 (910k is the closest E24 value to 900k) | 1 | ↗ |
| RC0603FR-07976RL | Yageo | — | 1 | ↗ |
| RC0603FR-079K53L | Yageo | — | 1 | ↗ |
| RC0805FR-0733RL | Yageo | Emitter ballast: (3.3 - 1.35 - Rds*I)/33 ~ 57 mA peak; 0805 for I^2R | 1 | ↗ |
| RC1206FR-076R8L | Yageo | Backlight ballast: (5.0-4.2 V)/120 mA = 6.7 -> 6.8R, ~0.1 W (1206, 0.25 W) | 1 | ↗ |
| RE=DE | — | Bridged default: DE drives ~RE (transmit mutes the receiver) | 1 | — |
| RE=PMOD4 | — | Open default: bridge (and cut JP1) to control ~RE from PMOD pin 4 | 1 | — |
| REF_CLK SOURCE | — | 1-2 (default): host 50 MHz from J3.2 -> XTAL1/CLKIN; 2-3: on-board oscillator | 1 | — |
| RFM95W-915S2 | HopeRF | LoRa transceiver module, SX1276, 915 MHz, SPI (footprint assigned: symbol has no default) | 1 | ↗ |
| SCD40-D-R2 | Sensirion | Photoacoustic NDIR CO2 sensor with integrated T/RH | 1 | ↗ |
| SD_MODE | — | 1-2 (default): SD_MODE via R1 to 3V3 = (L+R)/2 mono; 2-3: GND = shutdown | 1 | — |
| SELECT L/R | — | PDM slot select: 1-2 SELECT to GND = drive on clock-low half (default), 2-3 SELECT to VDD = drive on clock-high half | 1 | — |
| SHT31-DIS-B2.5KS | Sensirion | Digital temperature and relative-humidity sensor, +/-0.2C +/-2%RH | 1 | ↗ |
| SM04B-GHS-TB | JST | TFmini-S pigtail: 1 +5V, 2 lidar RXD (host TXD), 3 lidar TXD, 4 GND | 1 | ↗ |
| SM12B-SRSS-TB(LF)(SN) | JST | SMT panel-selector harness connector | 1 | ↗ |
| SMAJ5.0CA | — | — | 1 | — |
| SMBJ16A | Littelfuse | 16 V standoff unidirectional TVS across the protected rail (pin 1 = cathode = VBAT_P) | 1 | — |
| SN74AHCT125D | Texas Instruments | Quad 3-state buffer, TTL-threshold inputs (3.3 V -> 5 V level shift) | 1 | ↗ |
| SN74AHCT125PW | Texas Instruments | Quad buffer, 3-state, TTL-threshold inputs (3.3 V -> 5 V level shift) | 1 | ↗ |
| SN74AHCT1G125DBVR | Texas Instruments | CH1 drive gate 3.3->5 V (VCC 5 V, TTL-compatible input) | 1 | ↗ |
| SN74AHCT541DW | Texas Instruments | Octal 3-state buffer, TTL-threshold inputs (3.3 V -> 5 V level shift) | 1 | ↗ |
| SN74HCT541DW | Texas Instruments | Octal buffer/driver, 3-state, TTL-threshold inputs | 1 | ↗ |
| SN74LVC1G125DBVR | Texas Instruments | CH1 receive gate 5->3.3 V (VCC 3.3 V, 5 V-tolerant input) | 1 | ↗ |
| SN74LVC245APWR | Texas Instruments | Octal bus transceiver, VCC 3.3 V, inputs 5 V-tolerant | 1 | ↗ |
| SNK_VSET | — | Electrical test point | 1 | — |
| SPH0641LU4H-1 | Knowles | Digital PDM MEMS microphone, bottom port, -26 dBFS, 64.3 dB SNR, multi-mode | 1 | ↗ |
| SS34-E3/57T | Vishay | Negative VBUS surge clamp | 1 | ↗ |
| STATUS | — | — | 1 | — |
| STATUS / MEASURE | — | Optional status header | 1 | — |
| STSPIN230 | STMicroelectronics | Low-voltage 3-phase motor driver, 1.8-10 V, 1.3 A rms, integrated interlock | 1 | ↗ |
| TB6612FNG,C,8 | Toshiba | Dual DC motor driver H-bridge, 1.2 A per channel, VM 2.5-13.5 V | 1 | ↗ |
| 22uF 25V X7R | Murata | Battery-rail bulk reservoir | 1 | TBD |
| 20m 1% 1W | Vishay | Channel 1 current shunt, 2512: 4.096 A full scale at 81.92 mV | 1 | ↗ |
| 10mR 1% 3W | Vishay | INA226 current shunt, 2512 3 W metal strip | 1 | TBD |
| 5A FAST 5x20 | Littelfuse + Keystone | Main battery fuse in 5x20 clip holder (2x Keystone 3517 clips) | 1 | TBD |
| 2A | Littelfuse | Channel 1 fuse, 1206 SMD, rating is load-specific (2 A default) | 1 | TBD |
| PMS5003 (2x5 1.27mm) | generic | PMS5003 header, pad N = sensor pin N: 1/2 VCC(5V), 3/4 GND, 5 RESET, 7 RX, 9 TX, 10 SET | 1 | ↗ |
| 1000uF 10V (DNP) | TBD | DNP placeholder for on-module electrolytic bulk; README: fit external bulk at the strip | 1 | TBD |
| PIEZO PASSIVE | TBD | Passive piezo disc: no oscillator, host PWM sets the pitch | 1 | TBD |
| TELEMETRY HEADER | generic | Optional telemetry header: 1 GND, 2 3V3, 3 SDA, 4 SCL, 5 ALERT | 1 | TBD |
| TOUCH PAD | generic | Touch-electrode attachment point (wire, foil, or PCB pad) | 1 | TBD |
| PROBE HEADER | generic | Labeled probe row: 1-8 = DUT1-DUT8, 9 = GND, 10 = 3V3 | 1 | TBD |
| CH3 SPARE | generic | Spare analog input: CH3 + GND return | 1 | TBD |
| CH1 S/V/G | generic | Arduino-kit module socket CH1: 1 S(ignal), 2 V(+5V), 3 G(round) | 1 | TBD |
| ANALOG IN | generic | Analog input header: AIN, GND, 3V3 (input range 0..3V3) | 1 | TBD |
| I2C HEADER | generic | Telemetry header (duplicate of J7): 1 3V3, 2 GND, 3 SDA, 4 SCL | 1 | TBD |
| DAC OUT | generic | Waveform outputs: 1 OUT_I2C (MCP4725), 2 OUT_A, 3 OUT_B (MCP4822), 4 GND | 1 | TBD |
| PS/2 PIGTAIL (1x4 SOCKET) | generic | PS/2 pigtail or Mini-DIN-6 panel adapter: 1 +5V, 2 GND, 3 CLK, 4 DATA (5 V side) | 1 | TBD |
| HALLS (3V3/GND/H1/H2/H3) | generic | Hall sensor socket: 1 3V3, 2 GND, 3 H1, 4 H2, 5 H3 (open-collector OK) | 1 | TBD |
| LD2410C HEADER | generic | LD2410C 1.27 mm header: 1 VCC(3V3), 2 GND, 3 OUT, 4 RX (host TXD), 5 TX | 1 | TBD |
| ROW A (PMOD 1-6) | generic | Breadboard row A: B1 B2 B3 B4 GND 3V3 (PMOD upper row order) | 1 | TBD |
| MATRIX PINS 1-8 | generic | 8x8 matrix socket row: matrix pins 1-8 (1088AS-class common-cathode pinout) | 1 | TBD |
| CH2-CH7 + RAILS | generic | Breadboard header: CH2-CH7, GND, 3V3 | 1 | TBD |
| PIEZO DISC | generic | Piezo contact-mic disc terminal: 1 = signal, 2 = GND (disc brass) | 1 | TBD |
| ESP SPI (DNP) | generic | esp-hosted SPI upgrade header: IO6/IO7/IO2/IO10 + IO3/IO4 handshake; roles are firmware-defined | 1 | TBD |
| nRF24 SOCKET (2x4) | generic | Socket for an nRF24L01+ breakout: 1 GND, 2 VCC, 3 CE, 4 CSN, 5 SCK, 6 MOSI, 7 MISO, 8 IRQ | 1 | TBD |
| PROBE POD (2x5) | generic | Logic-analyzer probe header: pins 1-8 = CH0-CH7, pins 9/10 = GND | 1 | TBD |
| PMOD SOCKET (DUT) | generic | PMOD socket for the module under test (right-angle preferred at layout; vertical stock fp) | 1 | TBD |
| OV7670 SOCKET (2x9) | generic | Socket for the common 18-pin OV7670 breakout (no FIFO) | 1 | TBD |
| ACTIVE 3.3V | TBD | Active magnetic buzzer: built-in oscillator, fixed pitch | 1 | TBD |
| 25MHz 12pF | Abracon | 25 MHz crystal, CL = 12 pF, 3.2x2.5 mm 4-pad | 1 | TBD |
| 50MHz OSC (DNP) | Abracon | 50 MHz 3.3 V CMOS oscillator, 3.2x2.5 mm; fit only for JP1 2-3 mode | 1 | ↗ |
| 400R 0.1% | Panasonic | RTD reference resistor, 400R 0.1% 25ppm (PT100 range) | 1 | ↗ |
| 0.11R 1% 1206 | Bourns | Phase A sense resistor (RDSonSense off): sets full-scale current | 1 | ↗ |
| GL5528 LDR | generic | Light-dependent resistor, ~10k at 10 lux | 1 | TBD |
| 2.2uF 10V X5R | Murata | Module bulk decoupling | 1 | TBD |
| 22uF 35V X7R | Murata | VS bulk reservoir (chopper ripple) | 1 | TBD |
| FSR TERMINAL | generic | FSR terminal: 1 = 3V3, 2 = divider node (FSR polarity does not matter) | 1 | TBD |
| OUT1-OUT4 | Phoenix Contact | Low-side outputs: load wires from VLOAD to OUTx; channel sinks to GND | 1 | TBD |
| GROVE 1 I2C | generic | Grove I2C socket (2.00 mm header stand-in): 1 SCL, 2 SDA, 3 VCC, 4 GND | 1 | ↗ |
| SW-420 ELEMENT | generic | SW-420 spring vibration element soldered across two THT pads (non-polarized) | 1 | TBD |
| WC1602A | Winstar | 16x2 character LCD module, HD44780-class controller, 5 V logic | 1 | ↗ |
| 0.05R 1% 2512 | Vishay | Low-side shunt in the SENSEU/SENSEVW return (50 mV/A into the INA240) | 1 | ↗ |
| TCA9548APWR | Texas Instruments | 8-channel I2C switch with reset, address 0x70 | 1 | ↗ |
| TERM 120R | — | Open default: bridge at the two physical bus ends only | 1 | — |
| TERM H | — | Termination enable, CANH leg (bridged = terminated) | 1 | — |
| TERM L | — | Termination enable, CANL leg (bridged = terminated) | 1 | — |
| TLV3501AIDBVR | Texas Instruments | 4.5 ns rail-to-rail comparator, push-pull output | 1 | ↗ |
| TLV493D-A1B6 HTSA1 | Infineon | Low-power 3D magnetic (hall) sensor, +/-130 mT, I2C, SOT-23-6 | 1 | ↗ |
| TMC2209-LA-T | Analog Devices (Trinamic) | 2-phase stepper driver, 2.8 A peak, stealthChop2, single-wire UART, StallGuard4 | 1 | ↗ |
| TOG MODE | — | Open (default) = momentary output; bridge to 3V3 = toggle (latch) mode | 1 | — |
| TPS25730ADREFR | Texas Instruments | PD3.2 sink controller with integrated protected 5 A path | 1 | ↗ |
| TPS259470A | — | TI TPS25947 RPW0010A 10-pin VQFN-HR land pattern | 1 | ↗ |
| TPS259470ARPWR | Texas Instruments | Reverse-blocking active-current-limit eFuse | 1 | ↗ |
| TPSM63603RDHR | Texas Instruments | 36 V input 3 A integrated-inductor synchronous buck module | 1 | ↗ |
| TSAL6400 | Vishay | 940 nm 5 mm IR emitter, 100 mA continuous / 200 mA pulse | 1 | ↗ |
| TSDP34138 | Vishay | IR receiver for data links, 38 kHz carrier, 940 nm, push-pull output | 1 | ↗ |
| TTP223-BA6 | Tontek | Single-key capacitive touch detector, SOT-23-6 | 1 | ↗ |
| TUSB320LAI | — | — | 1 | ↗ |
| TYPE-K TC | — | Thermocouple terminal: 1 = T+ (yellow, K), 2 = T- (red, K) | 1 | — |
| U.FL-R-SMT-1(10) | Hirose | u.FL RF receptacle for a 915 MHz whip/patch antenna | 1 | ↗ |
| ULN2003ADR | Texas Instruments | 7-channel Darlington sink driver with internal clamp diodes | 1 | ↗ |
| USB4105-GF-A-120 | — | — | 1 | ↗ |
| VL53L1CXV0FY/1 | STMicroelectronics | Time-of-flight ranging sensor, 4 m, 940 nm VCSEL | 1 | ↗ |
| VOUT | — | Electrical test point | 1 | — |
| VOUT_1V1 | — | Electrical test point | 1 | — |
| VOUT_1V8 | — | Electrical test point | 1 | — |
| VOUT_3V3 | — | Electrical test point | 1 | — |
| VOUT_5V | — | — | 1 | — |
| VOUT_5V0 | — | Electrical test point | 1 | — |
| VOUT_SENSE | — | Electrical test point | 1 | — |
| VREF 2.0V/1.25V | — | Internal reference select: 1-2 (default) VREF=2.02V via R3/R4, 2-3 VREF=1.25V | 1 | — |
| W25Q128JVSIQ | Winbond | 128 Mbit (16 MB) SPI NOR flash, 208-mil SOIC-8, ECP5 boot-flash family | 1 | ↗ |
| W5500 | WIZnet | Hardwired TCP/IP embedded Ethernet controller, SPI, 8 sockets | 1 | ↗ |
| wire antenna solder pad | n/a | Quarter-wave wire antenna pad (~78 mm at 915 MHz) | 1 | — |
| WP OFF/ON | — | EEPROM write protect: 1-2 WP low = writable (default), 2-3 WP high = write-protected | 1 | — |
| XAL7030-332MEC | Coilcraft | 3.3 uH 12.3 A Isat shielded power inductor | 1 | ↗ |
| XAL7030-472MEC | Coilcraft | 4.7 uH 10.1 A Isat shielded power inductor | 1 | ↗ |