Main components

Download full BOM
Part NumberDescription
DHT11
ESP32-WROVER
TP40561A Standalone Linear Li-ion/LiPo single-cell battery charger, 4.2V ±1% charge voltage, VCC = 4.0..8.0V, SOIC-8 (SOP-8)
DW01AOvercharge, overcurrent and overdischarge protection IC for single cell lithium-ion/polymer battery
CP2102N-Axx-xQFN28USB to UART master bridge, QFN-28
SX1308
AMS1117-3.31A Low Dropout regulator, positive, 3.3V fixed output, SOT-223
DS1307Z+64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, SOIC-8
IRLML0030

kh gift hw schematic

Open in new tab

kh gift hw board layout