Olimex Introduces Open Source Hardware ESP8266 Wi-Fi Modules, Evaluation Board Coming Soon

ESP8266 has become popular as module based on this SoC make it incredibly cheap to add Wi-Fi to all sort of things, the SDK available, and a community has gathered around the solution. Olimex has jumped on the bandwagon, and is now provided two open source hardware ESP8266 modules: MOD-WIFI-ESP8266 which makes it easy to interface to other Olimex boards thanks to its UEXT connector, and MOD-WIFI-ESP8266-DEV with  two rows of 0.1″ connectors and an unsoldered UEXT pad, is better suited if you want to integrate it with your own baseboard, or experiment with a breadboard. An evaluation board called MOD-WIFI-ESP8266-EVB will be launched a little later. Both modules share most specifications: SoC – Espressif Systems ESP8266 32-bit RISC processor with 802.11 b/g/n support(32-pin QFN package), Wi-Fi – 802.112 b/g/n with WEP, TKIP, AES, and WAPI engines, Wi-Fi direct (P2P), and soft-AP. On-board antenna and u.FL connector Expansion MOD-WIFI-ESP8266 – […]

DWA8 ESP8266 Wi-Fi Module Features a 10-bit ADC, Up to 8 GPIOs, 4 PWM Outputs, and More (Crowdfunding)

Espressif ESP8266 based ESP-01 module may now cost $3, but it’s limited to only two GPIOs, so a Dooao, a Chinese company based in Beijing, has decided to make a new ESP8266 module with more GPIOs, PWM signals, SPI, UART. and a 10-bit ADC. Dooao DWA8 module specifications: SoC – Espressif Systems ESP8266 32-bit RISC processor @ 80 MHz with 120KB RAM (40KB usable), built-in 802.11 b/g/n support. Wi-Fi – 802.112 b/g/n, STA/AP/STA+AP modes, WEP/WPA-PSK/WPA2-PSK security Interfaces: Up to 8x GPIOs Up to 4x PWM SPI (master & slave) up to 40MHz UART with hardware FC up to 4Mbps 1x channel 10bit ADC Power supply – Single 3.3V  (2.8 to 3.6V) Power consumption – Max: 70 mA @ 3.3V (230 mW); typical: 12mA; standby < 200 uA; “soft power off” < 10uA. Dimensions – 27.13 x 17 x 2.3 mm (a bit larger than ESP-01) Temperature Range – Operating: -40 […]

Add Wi-Fi to Arduino Boards for $3 with ESP8266 Wi-Fi Serial Module

There has been some buzz around ESP8266 Wi-Fi module, mostly because of its low price, and SDK availability, meaning it could become the Wi-Fi equivalent of ENC28J60 Ethernet module, and that for $5 you could potentially add Wi-Fi to your Arduino board for example. Since then, the price has come down even further, and if you are prepared to buy 5 pieces, you can now get the module for less than $3 / piece shipped, alternatively a single module costs $4, and a complete Wi-Fi + Arduino Uno (clone) kit goes for $15. A community has also been built around the chip, and a several project have been made with Arduino boards and ESP8266 module. The best way to find information is to go to ESP8266 community forum, as well as read the Wiki on github. There’s currently a GCC toolchain for Espressif Systems ESP8266, open source tools for working […]