Main components

Download full BOM
Part NumberDescription
LD1117AV33800 mA Fixed Low Drop Positive Voltage Regulator (ldo). Max input 15V. Fixed Output 3.3V. TO-220-3
USBLC6-2SC6Very low capacitance ESD protection diode, 2 data-line, SOT-23-6
ESP32-S3-WROOM-22.4 GHz WiFi (802.11 b/g/n) and Bluetooth ® 5 (LE) module Built around ESP32S3 series of SoCs, Xtensa ® dualcore 32bit LX7 microprocessor Flash up to 16 MB, PSRAM up to 8 MB 36 GPIOs, rich set of peripherals Onboard PCB antenna
SHT4xDigital Humidity and Temperature Sensor, ±1%RH, ±0.1°C, I2C, 1.08-3.6V, 16bit, DFN-4
SN74LVCH8T2458-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs
SN74LV1T34DBVSingle Power Supply, Single Buffer GATE, CMOS Logic, Level Shifter, SOT-23-5
ULN2803ADarlington Transistor Arrays, SOIC18/DIP18
TCAL6416
74AHC1G04Single NOT Gate, Low-Voltage CMOS

hamodule schematic

Open in new tab

hamodule board layout