This circuit is a charger for single-cell lithium (Li-Ion) and Polymer (LiPo) batteries. It can sources energy from DC jack connectors (two different dimensions) or USB-C or solar panel. It uses MCP73871 which has the peculiarity to smartly adjust the current sank, making it ideal for solar-powered applications, where the available energy could be really scarce and high-varying over time.
Universal board for Arduino Nano and UNO and Nano shield with NRF24L01 transmitter, 16x02 LCD I2C SPI (PCF8574) display, two KY-040 Rotary Encoder, GY-521 ITG/MPU (MPU6050), Adafruit 9DOF (LSM303DLHC+L3GD20), MH-FMD BUZZER, DHT11 Humidity & Temperature Sensor, BME280 Pressure Humidity Temperature Sensor Module, MQ-8 and MQ-9 GAS SENSOR, With additional areas for dip and soic.
PCB files for Adafruit DC Stepper Motor FeatherWing
Format is EagleCAD schematic and board layout
For more details, check out the product page at
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Designed by Adafruit Industries.
PCB Breadboard made to fit the pinout of the AdaFruit Feather Line (and other tiny boards and chipouts with a .9"/900mil DIP stance) without compromising on the number of open bus strip holes. also, adds additional bus strips down the middle of the board.