Data Sheet
Table Of Contents
Wireless-Tag Technology Co., Ltd. V1.0.0
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4
3 Pin Definitions
3.1 Pin Layout
Figure 2 Pin Layout
The pin descriptions are as follows.
Table 1 Pin Definitions and Descriptions
Pin
Name
Description
1
EN
Chip Enable pin:
High level: on, enables the chip.
Low level: off, the chip powers off, low current.
Note: Do not leave the EN pin floating.
2
IO1
GPIO1, ADC1_CH1, XTAL_32K_N (32.768 kHz crystal output)
3
IO6
GPIO6, MTCK, FSPICLK
4
IO10
GPIO10, FSPICS0
5
IO3
GPIO3, ADC1_CH3
6
3V3
Power supply
7
GND
Ground
8
RX
U0RXD, GPIO20
9
TX
U0TXD, GPIO21
10
IO5
GPIO5, MTDI, ADC2_CH0, FSPIWP
11
IO4
GPIO4, MTMS, ADC1_CH4, FSPIHD
3.2 Strapping Pins
ESP32-C3 series has three strapping pins.
GPIO2
GPIO8