Q2,Q3 SS8050 General Purpose NPN Transistor, 1.5A Ic, 25V Vce, SOT-23 U1 ESP32-WROOM-32E RF Module, ESP32-D0WD-V3 SoC, without PSRAM, Wi-Fi 802.11b/g/n, Bluetooth, BLE, 32-bit, 2.7-3.6V, onboard antenna, SMD U2 CH343P High-Speed USB serial converter, up to 6Mbps, 3.3V or 5V supply, UART, QFN-16 U4 ME6217C33M5G 500mA low dropout linear regulator, fixed 2.5V output, SOT-23-5 C1,C2 0.1 Unpolarized capacitor, small symbol C4,C14,C23 10uF Unpolarized capacitor, small symbol C15 1uF Unpolarized capacitor, small symbol C17 4.7uf Unpolarized capacitor, small symbol C18 104 Unpolarized capacitor, small symbol C19 4.7uF Unpolarized capacitor, small symbol C22 47uF Unpolarized capacitor, small symbol D5,D6 LED Light emitting diode J1 Conn_01x04_Pin Generic connector, single row, 01x04, script generated