The ESP-07 is a microcontroller that’s powerful enough to handle most IoT tasks, similar to the LoLin NodeMCU V3 board, but in a much smaller integrated package.
- Voltage: 3.3 v
- Flash size: 1 MB (8 MBit)
- Integrated 10-bit ADC (Analog Pin!)
- Wi-Fi 2.4 GHz, 802.11 b/g/n, supports WPA/WPA2
- WiFi client, server, or both
- 20 dBm output power in 802.11b mode
For full specs, check the datasheet: Datasheet