esp32-wsn-telemetry-node
losneoo
Low-power ESP32 environmental telemetry node. Includes custom KiCad hardware schematics, ESP-NOW protocol broadcasting, custom I2C drivers, and deep sleep power management.
Components (15)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | NPN | Bipolar transistor symbol for simulation only, substrate tied to the emitter |
| U1 | AP2112K-3.3 | 600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5 |
| U2 | CH340C | USB serial converter, crystal-less, UART, SOIC-16 |
| U3 | BME280 | 3-in-1 sensor, humidity, pressure, temperature, I2C and SPI interface, 1.71-3.6V, LGA-8 |
| U4 | SGP30 | SGP30, SHTC1 Air Quality, Humidity, Temperature Sensor Arduino Platform Evaluation Expansion Board |
| U5 | 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 |
| C1,C2 | 10uf | Unpolarized capacitor, small symbol |
| C3,C4 | 0.1uf | Unpolarized capacitor, small symbol |
| D1,D2 | D_Schottky | Schottky diode |
| J1 | USB_C_Receptacle_USB2.0_16P | USB 2.0-only 16P Type-C Receptacle connector |
| J2 | Conn_01x02_Pin | Generic connector, single row, 01x02, script generated |
| R1,R2 | 5k1 | Resistor, small symbol |
| R3,R4 | 4k7 | Resistor, small symbol |
| R5-R8 | 10k | Resistor, small symbol |
| R9,R10 | 100k | Resistor, small symbol |