User's Manual

CONFIDENTIAL
!
2. Pin Description
ESP-WROOM-5C has 15 pins. Please see the pin definitions in Table 2-1.
Table 2-1. ESP-WROOM-5C Pin Definitions
No. Pin Name Functional Description
1 3V3
3.3V power supply (VDD)
📖 Note:
It is recommended the maximum output current a power supply
provides be of 500 mA or above.
2 EN Chip enable pin. Active high.
3 IO14 GPIO14
4 IO5 GPIO5
5 GND GND
6 IO12 GPIO12
7 IO13 GPIO13
8 IO4 GPIO4
9 EN Chip enable pin. Active high.
10 GND GND
11 IO0
GPIO0
•
UART download: pull down.
•
Flash boot: floating or pull up.
12 3V3
3.3V power supply (VDD)
📖 Note:
It is recommended the maximum output current a power supply
provides be of 500 mA or above.
13 RXD
UART0_RXD, receive end in UART download;
GPIO3
14 TXD
UART0_TXD, transmit end in UART download, floating or pull up;
GPIO1
15 GND GND
📖 Note:
Pins 1 ~ 8 are pluggable pads that can be welded to your own development board, while pins 9 ~ 15 are
reserved for testing and cannot be welded to the development board.
Espressif ! !6
2019.01