E61-Ttl-1W; Dimension; Pin Definition - Ebyte E61 Series User Manual

Wireless UART Module

3.2 E61-TTL-1W

3.2.1 Dimension

3.2.2 Pin Definition

Pin No. Pin item
1 M0
2 M1
3 RXD
4 TXD
5 AUX
6 VCC
7 GND
8 Fixing hole
9 Fixing hole
10 Fixing hole
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Pin direction
Input Work with M1 & decide the four operating modes.
（weak pull-up） Floating is not allowed, can be ground.
Input Work with M0 & decide the four operating modes.
（weak pull-up） Floating is not allowed, can be ground.
TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can be
Input
configured as open-drain or pull-up input.
TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can be
Output
configured as open-drain or push-pull output.
To indicate module's working status & wakes up the external MCU. During
Output the procedure of self-check initialization, the pin outputs low level. Can be
configured as open-drain output or push-pull output.
Input Power supply 2.8V-5.5V DC.
Input Ground electrode
Fixing hole
Fixing hole
Fixing hole
User Manual of E61 Series Modules
Pin application
(Floating is allowed).
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