
!
5. Hardware Reference
5.
Hardware Reference
5.1. Block Diagram
Figure 5-1. ESP8266-DevKitS Block Diagram
5.2. Power Supply Options
There are three mutually exclusive ways to provide power to the board:
• Micro USB port, default power supply
• 5V and GND header pins
• 3V3 and GND header pins
It is advised to use the first option: micro USB port.
5.3. Header Blocks
Table 5-1. Header Block
Location
Label
Signal
L1
G
GND
L2
3V3
VDD 3V3
L3
3V3
VDD 3V3
Espressif
!
/9
6
2020.02