Wee Serial WIFI Module

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Overview

IM141118001 3.jpg

Wee is a WIFI module based on ESP8266 SoC. ESP8266 comes out of nowhere and has been taking by storm the IoT world. You can find many hacking projects about it on the internet. So far, the most popular ESP8266 breakout version only has GPIO0 and GPIO2 routed to the header. Compared to it, Wee WIFI module is designed with a standard Bee interface and has more GPIOs available for developers. In a word, users can take full use of the utility of ESP8266 SoC by using Wee WIFI module in your projects.

Go shopping Wee Serial WIFI Module

Features

  • Standard Bee interface
  • indicators: TX, RX, PWR
  • FW/Work Switch
  • More GPIOs help developer take full use of the utility of ESP8266 SoC

Specification

PCB Size 23.9X26.2X1.6mm
Interface Bee interface
Indicators PWR,TX,RX

Electrical Characteristics

Characteristics Symbol Min Typ Max Unit
Power supply voltage VDD 3 3.3 3.5 V
High input voltage VIH 0.8XVDD - VDD V
Low input voltage VIL 0 - 0.2XVDD V
Operation current for VDD IDD - - 215 mA

Hardware

IM141118001pic1.jpg IM141118001pic2.jpg IM141118001pic4.jpg

Note

  • Work/FW Switch
When burn firmware into ESP8266, you should ensure the switch is in FW mode.
For the normal usage of this module, you should ensure the switch is in work mode.

Pin Map

Pin Index Pin Name Description
1 3V3
2 TX
3 RX
4 -
5 RST# Enable wee module to reset in low level
6 -
7 FW Firmware enable pin*
8 -
9 -
10 GND
11 -
12 -
13 MTMS
14 GPIO2
15 -
16 -
17 -
18 MTD0
19 MTCK
20 MTDI

Note:

  • Firmware enable pin
When set to 0, power or reset the wee module, you can access to the firmware uploading mode;
When set to 1, power or reset the wee module, you can access to the normal work mode

Instruction

AT Commands--http://wiki.iteadstudio.com/ESP8266_Serial_WIFI_Module

Download

Schematic--File:IM141118001-Wee-Schematic.pdf