Are you ready to play with Do-It-Yourself Alexa Speaker, WiFi SIP phone, WiFi walkie-talkie, Internet Radio player and broadcasting? Then the Open Source hardware ESP32-ADF is the right board to start with!

ESP32-ADF

With ESP32-WROOM-B module with 8MB RAM and 4MB of Flash, two microphones, two 3W speakers, codec, amplifier, Lipo charger, USB with programming, Audio 3.5mm jack, ESP32-ADF board offers everything you need to start playing with Espressif Audio Development Framework.

Today we made our first Alexa prototype:

and we spoke with ESP32-ADF running WiFi SIP phone, you do not need PC to make free calls all around the world to other people with VoIP phones!

Surprisingly there was no any lag caused by the WiFi and it works as good as the commercial wired SIP VoIP phones.

We add now MOD-LCD2.8RTP with touch screen on ESP32-ADF UEXT connector and write some nice graphical UI then will upload the VoIP phone demo code next week.

We do same for the Internet Radio player demo – nice graphical UI, so user can select which radio station to connect to.

 

eduArdu is new Open Source Hardware educational board targeting kid’s digital education

eduArdu

Few weeks ago we got contacted by Digital Kidz an non for profit foundation which goals are to support digital literacy and innovative education in the schools. They needed hardware board, which to be easy to use and to allow entry level programming with Scratch and Arduino for beginners. They were ready to pay for the development, but we liked the idea and decided to design one such board for free and release it as Open Source Hardware.

The result is here:

eduArdu-explained

The design is based on ATmega32U4 which is easily programmable with Arduino IDE. We named it “eduArdu” as this is educational board programmable with Arduino.

eduArdu has these features:

  • USB connector for programming and power supply
  • red LED matrix 8×8 which allow text and small image animations
  • X-Y Joystick with push button for navigation
  • Microphone for Audio sensing and interactions
  • Speaker for Audio output
  • Light sensor with LDR
  • Digital temperature sensor
  • RGB LED
  • Status LED
  • IR remote control LED and receiver to talk to other boards, TVs, Air conditioners, etc.
  • PIR motion detector up to 6 meter range
  • UltraSound distance measurement sensor
  • Two SERVO motor connectors (to build easily two wheel robot car)
  • LiPo charger so the whole board may work on LiPO power
  • 6 Makey-Makey style buttons
  • UEXT connector for additional modules

eduArdu-front

The board is shaped like Game console. The first prototypes will be ready in 2 weeks.

Target sale price is EUR 15.00