Browse hardware designs
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Public designs
Arduino based data logger with LoRa IoT interface.
Without using a USB-C PD controller chip, handling communication over the USB cable, USB-C standard allows to get 5V up to 3A through a hardware availability detection. Here I show a design developed on KiCad and made through JLCPCB, powering from a USB-PD source and providing 5V and 3.3 (through a step-down converter) up to 3A.
Tokay AI Camera - ESP32 camera development board
Semiconductor cosmic radiation detector Silicon diode interface.
XIAO base board PCB & configuration for ESPHome based sensors.
QFH active antenna analog front end and down converter
RP605K is a compact ultra-low-power buck-boost converter module with a built-in battery monitor. Vin: 1.8-5.5V and Vout: 3.3V up to 300mA
Small low-power MPPT module for photovoltaic cells.
Universal Arduino based data logger to SDcard.
Small low-power photovoltaic MPPT module with LTO battery
Domestic vibration sensor with ESP32: detects and monitors motion and vibrations in real-time using a 6-axis MPU-6050 IMU. Battery-powered and Wi-Fi/Bluetooth enabled, ideal for smart home, IoT, and predictive maintenance applications.
STM32F469I-DISCO compatible CAN shield.
Schematic and PCB for Li-Po charger with power path, power management inputs, charging state and 3.3V output and I2C fuel gauge