10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072).
Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C
10A MPPT Solar Charge Controller with dual USB ports using Low-power 32bit ARMCortex-M0+ MCU (STM32L072).
Expandable via Olimex Universal Extension Connector (UEXT) featuring I2C
This is an NFC card that works from the solar. On the board, there are two solar panels that accumulate energy through the controller in the supercapacitor. The NFC controller itself can be programmed via the microcontroller on the board
#solar #nfc #stm32 #iot
To power the Raspberry Pi from solar panels or a lifepo4 battery, an efficient ultra-low power boost converter with battery management is used to generate power BQ25504RGTT
ESP32-S3 based controller for a DMX-controlled motorized pan/tilt mirror head with Dynamixel servo control and GPS solar tracking. This step establishes the MCU, USB-C flashing/debug interface, reset/boot circuitry, and status LED on a 3V3 rail.
Solar-powered dashboard compass for an FJ with a 3-digit seven-segment direction display, magnetometer sensing, low-power MCU control, rechargeable battery storage, and solar charging.