crosspec / arduino & embedded
Build an embedded project that just works.
197 components. Match 3.3V / 5V logic, avoid I2C address conflicts, get the right LiPo + charger. Sourced from SparkFun, Adafruit, and the Arduino official catalog.
Tell me about the project you're building e.g. "battery-powered ESP32 with a soil sensor" or "Pico W with an OLED"
Tick a component above to see compatible options.
build total $0
Review & checkout Or browse everything by category
Boards
43- arduino Arduino UNO R3 $27.6
- arduino Arduino UNO R4 Minima $20
- arduino Arduino UNO R4 WiFi $27.5
- arduino Arduino Mega 2560 Rev3 $48.4
- arduino Arduino Nano $24
- arduino Arduino Nano 33 IoT $27.6
- arduino Arduino Nano 33 BLE $32.3
- arduino Arduino MKR WiFi 1010 $38.4
- arduino Arduino MKR Zero $32.3
- arduino Arduino Portenta H7 $117.5
- espressif Espressif ESP32 DevKitC v4 $14.95
- espressif Espressif ESP32-S3 DevKitC-1 $17.5
- generic ESP32-C3 SuperMini $4.5
- ai thinker AI-Thinker ESP32-CAM $9.95
- raspberry pi Raspberry Pi Pico $4
- raspberry pi Raspberry Pi Pico W $6
- raspberry pi Raspberry Pi Pico 2 $5
- raspberry pi Raspberry Pi Pico 2 W $7
- adafruit Adafruit QT Py RP2040 $9.95
- adafruit Adafruit QT Py ESP32-S2 $12.5
- adafruit Adafruit QT Py ESP32-S3 $15
- adafruit Adafruit QT Py SAMD21 $9.5
- adafruit Adafruit Feather M0 WiFi (ATWINC1500) $34.95
- adafruit Adafruit Feather M4 Express $22.95
- adafruit Adafruit Feather ESP32 V2 $19.95
- adafruit Adafruit Feather RP2040 $11.95
- adafruit Adafruit Metro M0 Express $24.95
- adafruit Adafruit Metro M4 AirLift Lite $39.95
- sparkfun SparkFun RedBoard Qwiic $22.5
- pjrc PJRC Teensy 4.0 $23.8
- pjrc PJRC Teensy 4.1 $31.5
- particle Particle Argon $36
- particle Particle Photon 2 $18
- m5stack M5Stack Core2 ESP32 $49.9
- m5stack M5Stack StickC Plus 2 $19.9
- espressif Espressif ESP32-C3-DevKitM-1 $6
- espressif Espressif ESP32-C6-DevKitC-1 $10
- adafruit Adafruit Feather ESP32-S3 $19.95
- seeed Seeed Studio XIAO ESP32-C6 $9.9
- seeed Seeed Studio XIAO RP2040 $5.4
- pjrc PJRC Teensy 4.1 (Ethernet-ready) $31.5
- seeed Seeed Wio Terminal $36.9
- raspberry pi Raspberry Pi Pico 2 W (RP2350 wireless) $7
Sensors
47- aosong DHT11 Temperature/Humidity Sensor $3.5
- aosong DHT22 Temperature/Humidity Sensor $9.95
- maxim Maxim DS18B20 1-Wire Temperature $9.95
- bosch Bosch BMP280 Barometric Pressure $9.95
- bosch Bosch BME280 T/H/P Sensor $14.95
- bosch Bosch BME680 Air Quality Sensor $22.5
- invensense InvenSense MPU-6050 6DOF IMU $4.95
- invensense InvenSense MPU-9250 9DOF IMU $14.95
- bosch Bosch BNO055 IMU with Fusion $34.95
- generic HC-SR04 Ultrasonic Distance Sensor $3.95
- stmicro ST VL53L0X Time-of-Flight Distance $14.95
- stmicro ST VL53L1X Long-Range ToF $14.95
- ams AMS TCS34725 RGB Color Sensor $7.95
- maxim Maxim MAX9814 Auto-Gain Microphone $7.95
- maxim MAX30102 Heart-Rate / SpO2 $11.95
- generic RCWL-0516 Microwave Radar Motion $2.5
- generic LDR Light-Dependent Resistor Breakout $1.95
- generic MQ-2 Combustible Gas / Smoke Sensor $4.95
- generic MQ-7 Carbon Monoxide Sensor $4.95
- generic MQ-135 Air-Quality Gas Sensor $4.95
- figaro Figaro TGS2600 Air Contaminant Sensor $16.95
- generic Capacitive Soil Moisture Sensor v1.2 $4.5
- ti TI INA219 Current/Voltage Monitor $9.95
- ti TI INA226 Bidirectional Current Monitor $14.95
- avia Avia HX711 Load-Cell ADC $9.95
- u blox u-blox NEO-6M GPS Module $12.95
- u blox u-blox NEO-M9N GPS $64.95
- sensirion Sensirion SCD41 CO2 Sensor $49.95
- sensirion Sensirion SHT40 T/H Sensor $5.95
- generic HC-SR501 Adjustable PIR Motion $2.5
- ams ams TSL2591 High-Range Lux Sensor $6.95
- tdk TDK ICM-20948 9DOF IMU $14.95
- bosch Bosch BMI270 IMU $14.95
- benewake Benewake TFmini-S LiDAR $39.95
- ti TI ADS1115 16-bit ADC $9.95
- sensirion Sensirion SCD40 CO2 Sensor $44.95
- sciosense ScioSense ENS160 Air Quality Sensor $14.95
- ams ams AS7341 11-Channel Spectral Sensor $14.95
- invensense InvenSense MPU-9250 9DOF Breakout (Adafruit) $24.95
- tdk TDK ICM-42688-P 6DOF IMU $14.95
- bosch Bosch BME680 STEMMA QT Breakout $22.5
- stmicro ST LSM6DS3 6DOF IMU Breakout $12.95
- broadcom Broadcom APDS-9960 Gesture Sensor $7.95
- te connectivity MS5611 High-Resolution Barometer $14.95
- rohm ROHM BH1750 Ambient Light Sensor $4.95
- ti TI ADS1015 12-bit ADC Breakout $7.95
- sensirion Sensirion SHT31 T/H Sensor $13.95
Displays
21- generic 0.96" OLED 128x64 SSD1306 I2C $5.95
- generic 1.3" OLED 128x64 SH1106 I2C $9.95
- generic 1.8" TFT 128x160 ST7735 SPI $9.95
- generic 2.8" TFT Touch 320x240 ILI9341 $24.95
- generic 3.5" TFT 480x320 ILI9488 $21.95
- good display 1.54" e-Paper 200x200 SSD1681 $19.95
- good display 2.13" e-Paper 250x122 SSD1675 $24.95
- good display 2.9" e-Paper 296x128 SSD1680 $29.95
- good display 4.2" e-Paper 400x300 UC8176 $49.95
- good display 7.5" e-Paper 800x480 UC8179 $69.95
- maxim MAX7219 8-Digit 7-Segment / 8x8 LED $4.95
- generic 16x2 LCD HD44780 I2C $7.95
- adafruit Adafruit NeoPixel Ring 24-LED $16.95
- adafruit Adafruit NeoPixel Strip 5m 60/m $124.95
- generic 5x7 LED Dot Matrix Display $1.95
- sharp Adafruit Sharp Memory Display 400x240 $44.95
- pimoroni Pimoroni Display HAT Mini 320x240 $18.9
- waveshare Waveshare 2.13in e-Paper HAT 250x122 $17.99
- sparkfun ILI9341 2.4" TFT Breakout (SparkFun) $29.95
- generic WS2812B NeoPixel Ring 24 (generic) $7.95
- generic MAX7219 8x8 LED Matrix Module $3.95
Motors
21- tower pro Tower Pro SG90 9g Micro Servo $5.95
- tower pro Tower Pro MG996R Metal-Gear Servo $12.95
- generic NEMA17 Bipolar Stepper Motor $14.95
- generic 28BYJ-48 5V Geared Stepper $6.95
- pololu Pololu A4988 Stepper Driver $5.95
- pololu Pololu DRV8825 Stepper Driver $7.95
- trinamic TMC2208 Silent Stepper Driver $9.95
- generic L298N Dual H-Bridge Motor Driver $4.95
- generic BTS7960 43A H-Bridge Driver $14.95
- generic Yellow Hobby Gear DC Motor 6V $2.95
- emax EMAX RS2204 Brushless Drone Motor $16.95
- adafruit Adafruit 5V Push-Pull Solenoid $5.95
- generic 12V Solenoid Water Valve 1/2" $14.95
- generic Coin Vibration Motor 3V $2.95
- generic 5V 4-Channel Relay Module (opto-isolated) $8.95
- adafruit Adafruit Motor Shield V2 $19.95
- generic L298N H-Bridge Module (classic variant) $3.5
- generic A4988 Stepper Driver Bare Module $1.95
- pololu DRV8825 Stepper Driver Board $8.95
- stepperonline NEMA17 Bipolar Stepper 40mm $12.99
- tower pro MG996R Metal-Gear Servo (branded) $9.95
Power
21- adafruit LiPo 1S 1000mAh JST-PH Cell $9.95
- adafruit LiPo 1S 2000mAh JST-PH Cell $12.5
- adafruit LiPo 1S 3000mAh JST-PH Cell $19.95
- panasonic Panasonic NCR18650B Li-Ion Cell $8.95
- generic 18650 Battery Holder Single Cell $1.95
- generic TP4056 1A LiPo Charger Module $1.95
- generic AMS1117-3.3 LDO Regulator $0.95
- microchip Microchip MCP1702-3302 LDO $0.55
- generic MT3608 2A DC-DC Boost Converter $1.95
- generic LM2596 3A DC-DC Buck Converter $2.5
- generic MP1584 3A Mini Buck Converter $2.5
- generic USB-C PD Trigger Board (5/9/12/15/20V) $4.95
- generic AMS1117-5.0 LDO Regulator $0.95
- generic 9V 2A Barrel-Jack Wall Adapter $7.95
- adafruit Adafruit PowerBoost 500C $14.95
- adafruit Adafruit PowerBoost 1000C $19.95
- pololu Pololu Mini Pushbutton Power Switch $4.95
- sparkfun SparkFun BabyBuck 3.3V Regulator $3.95
- pololu Pololu D24V22F5 5V/2.2A Buck Regulator $14.95
- pimoroni Pimoroni LiPo SHIM for Pico $9.9
- generic TP4056 LiPo Charger with Protection (USB-C) $2.5
Carriers / breakouts
24- adafruit Arduino UNO ProtoShield $17.5
- generic Solderless Breadboard 830 Tie-Point $5.95
- generic Double-Sided Perfboard 70x90mm $4.95
- adafruit Adafruit FeatherWing OLED 128x32 $14.95
- adafruit Adafruit Adalogger FeatherWing $8.95
- adafruit Adafruit NeoPixel FeatherWing 4x8 $14.95
- adafruit Adafruit Radio FeatherWing RFM69HCW 915MHz $11.95
- adafruit Adafruit LoRa FeatherWing RFM95 915MHz $19.95
- adafruit Adafruit Motor FeatherWing DC+Stepper $19.95
- adafruit Adafruit Latching-Relay FeatherWing $7.5
- arduino Arduino MKR IoT Carrier $60.5
- adafruit Adafruit Perma-Proto Quarter-size $2.95
- generic Nano Screw-Terminal Adapter $5.95
- generic ESP32 30-pin DevKit Expansion Board $6.95
- adafruit Adafruit FeatherWing Doubler $7.5
- adafruit Adafruit FeatherWing OLED 128x64 $14.95
- adafruit Adafruit Doubler FeatherWing (Proto) $7.5
- sparkfun SparkFun Qwiic Adapter $3.95
- pimoroni Pimoroni Pico Display Pack 2.0 $14.9
- generic Pico Proto Breakout Board $3.95
- pimoroni Pimoroni Pico Decker Quad Expander $14.9
- zio ZIO Qwiic Hub (4-port I2C) $4.95
- adafruit Adafruit Adalogger FeatherWing (RTC + SD) $8.95
- ti Adafruit TCA9548A 8-Channel I2C Multiplexer $6.95
Connectivity
20- adafruit Adafruit RFM69HCW 915MHz Packet Radio $9.95
- adafruit Adafruit RFM95W LoRa 915MHz $19.95
- ai thinker ESP-01S WiFi Module $2.95
- generic nRF24L01+ PA/LNA 2.4GHz Module $6.95
- generic HC-05 Bluetooth Classic Module $6.95
- generic HM-10 BLE 4.0 Module $7.95
- generic SIM800L 2G GSM/GPRS Module $11.95
- simcom A7670G LTE Cat 1 Module $39.95
- nxp MFRC522 13.56MHz RFID Reader $5.95
- nxp Adafruit PN532 NFC/RFID Breakout $39.95
- microchip ENC28J60 Ethernet Module $6.95
- wiznet WIZnet W5500 Ethernet Module $9.95
- sparkfun SparkFun LoRa Thing Plus expLoRaBLE $49.95
- adafruit Adafruit RFM69HCW Packet Radio Breakout 915MHz $9.95
- quectel Quectel BG770A NB-IoT / LTE-M Module $19.95
- rak wireless RAK Wireless WisDuo LPWAN Bridge $12.95
- u blox SparkFun NEO-M9N GPS Breakout $64.95
- pimoroni Pimoroni Inky Frame 5.7" e-Paper Badge $59.9
- seeed Seeed LoRa-E5 Module (STM32WL) $6.9
- simcom SIM7080G NB-IoT / LTE-M Module $29.95