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A field guide
to small builds

Parts Catalog

94 parts with verified buy links and project examples

Boards by Family

ESP32

17 boards

ESP32-C3 1.28in round touch display (ESP32-2424S012)

ESP32-2432S028R Cheap Yellow Display 2.8in touch

ESP32-C3 SuperMini

AI-Thinker ESP32-CAM (OV2640)

ESP32-DevKitC (ESP32-WROOM-32)

ESP32-S3-DevKitC-1 (N16R8)

View all 17 ESP32 boards →

Raspberry Pi

3 boards

Raspberry Pi 4 Model B

Raspberry Pi Zero 2 W

Raspberry Pi Zero W

Raspberry Pi Pico

4 boards

Adafruit MacroPad RP2040 kit

Raspberry Pi Debug Probe

Raspberry Pi Pico (RP2040)

Raspberry Pi Pico 2 (RP2350)

Arduino

1 boards

Arduino Uno R3 (or compatible)

STM32

2 boards

STM32F103C8 Blue Pill

STM32F401/F411 Black Pill

Nordic nRF52

5 boards

nice!nano v2 / nrfmicro (nRF52840 Pro Micro)

Nordic nRF52840 Dongle

PINE64 PineTime smartwatch

RAK WisBlock RAK4631 (nRF52840 + SX1262)

RuuviTag sensor beacon

Displays

1.28in 240x240 round TFT (GC9A01)

Spare HDMI monitor (any size)

HUB75 64x32 RGB LED matrix panel (P3/P4)

2.8-3.2in ILI9341 TFT with XPT2046 touch

7.3in Spectra 6 colour e-paper panel

0.96in 128x64 OLED (SSD1306, I2C)

Sensors

AHT20 / AHT2x temp-humidity sensor

AS5600 magnetic encoder

BME280 temp/humidity/pressure breakout

Capacitive soil moisture sensor v1.2

SCT-013 split-core current transformer

DS18B20 waterproof temperature probe