Hardware Specifications¶
Technical specifications for ESP32 sensor nodes.
ESP32 Microcontroller¶
- Processor: Xtensa dual-core 32-bit LX6
- Clock Speed: Up to 240 MHz
- WiFi: 802.11 b/g/n (2.4 GHz)
- Flash: 4 MB
- RAM: 520 KB SRAM
- Power: 3.3V, 160-260mA active
Supported Sensors¶
- DHT11: ±2°C, ±5% RH
- DHT22: ±0.5°C, ±2% RH
- Other: Any I2C/SPI environmental sensor
Power Requirements¶
- Voltage: 5V USB or 3.3V regulated
- Current: 200mA average, 400mA peak
- Battery: Can run on LiPo with regulator
Network¶
- Protocol: WiFi 2.4GHz
- Discovery: mDNS
- Communication: HTTP/JSON