
Li-Ion/Li-Po battery management shield for the Particle Photon, built around the MCP73871 controller. Simultaneously powers the Photon and charges a connected battery; battery level is monitorable via the Photon.
On-board USB power/charge input; Particle docs state the Power Shield can power the Particle device and charge the LiPo from USB.
External DC supply input for powering the Particle device and charging the 3.7V LiPo battery; Particle docs state DC is preferred over USB when both are present.
3.7V LiPo battery connector charged by the shield and used by the power-management circuit.
Particle D0 I2C data line used by the MAX17043 fuel-gauge chip; Particle docs say avoid using D0 as GPIO because it will interfere with the fuel gauge.
Shield
Confirm the data interface matches your host board.
Module pins: D0 / SDA, D1 / SCL. Schematik maps them to your board in the app.
About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output) visual preview
10 I/Os Relay Module - CPU Arduino Nano (Relay Output) visual preview
Adafruit METRO 328 - Arduino Compatible - with Headers visual preview
Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz [STEMMA QT / Qwiic] visual previewAbout 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.
Boards · Arduino boards · 76 parts
10 I/Os Relay Module - CPU ESP32 (Relay Output) visual preview
Adafruit ESP32 Feather V2 w.FL Antenna - 8MB Flash + 2MB PSRAM visual preview
Adafruit ESP32-C6 Feather - STEMMA QT visual preview
Adafruit ESP32-S2 Feather - 4MB Flash + 2MB PSRAM visual previewWi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.
Boards · ESP32 boards · 111 parts
:MOVE mini MK2 buggy kit visual preview
:VIEW text32 LCD Screen for the BBC micro:bit visual preview
16-Ch Servo Driver Breakout for micro:bit, I2C visual preview
2x40 Right Angle Edge Connector for micro:bit visual previewSpecialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
Boards · Other MCU boards · 226 parts
Adafruit DVI Breakout Board for HDMI Source Devices visual preview
Adafruit DVI Sock for Pico - Works with HDMI Displays visual preview
Adafruit Feather RP2040 with DVI Output Port - Works with HDMI visual preview
Adafruit MACROPAD RP2040 Bare Bones - 3x4 Keys + Encoder + OLED visual previewThe Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.
Boards · Pico & RP2040 boards · 44 parts
Particle D1 I2C clock line used by the MAX17043 fuel-gauge chip; Particle docs say avoid using D1 as GPIO because it will interfere with the fuel gauge.
Blue charger status LED; Particle docs list STAT1/STAT2 combinations for precharge, fast charge, charge done, suspend, fault, and sleep states.
Red charger status LED; Particle docs list STAT1/STAT2 combinations for precharge, fast charge, charge done, suspend, fault, and sleep states.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| USB | power input | On-board USB power/charge input; Particle docs state the Power Shield can power the Particle device and charge the LiPo from USB. | USB 5V input; charge current is set to 500mA when charging from USB per Particle docs. | |
| DC input | power input | External DC supply input for powering the Particle device and charging the 3.7V LiPo battery; Particle docs state DC is preferred over USB when both are present. | 7 to 20V DC operating input, current consumption 1.2A max from non-USB DC sources per Particle docs. | |
| LiPo JST | battery | 3.7V LiPo battery connector charged by the shield and used by the power-management circuit. | 3.7V LiPo battery; Adafruit product page states the shield ships with a 3.7V 2000mAh Li-Po battery. | |
| D0 / SDA | i2c | Particle D0 I2C data line used by the MAX17043 fuel-gauge chip; Particle docs say avoid using D0 as GPIO because it will interfere with the fuel gauge. | Particle I2C logic level on Photon/Core shield interface. | |
| D1 / SCL | i2c | Particle D1 I2C clock line used by the MAX17043 fuel-gauge chip; Particle docs say avoid using D1 as GPIO because it will interfere with the fuel gauge. | Particle I2C logic level on Photon/Core shield interface. | |
| STAT1 | indicator | Blue charger status LED; Particle docs list STAT1/STAT2 combinations for precharge, fast charge, charge done, suspend, fault, and sleep states. | ||
| STAT2 | indicator | Red charger status LED; Particle docs list STAT1/STAT2 combinations for precharge, fast charge, charge done, suspend, fault, and sleep states. |
Pan-Tilt HAT Kit