Again, a FM radio project based on Si4703 breakout board with Arduino, for your bench-work, bathroom … you can listen your programmed favorites radio station, build’s very simple, The breakout provides access to SDIO and SCLK for I2C communication while RST can be used for easy resetting. I use Arduino 3.3v@8Mhz, audio output is wired to Mini PAM8403 5V 2Channel USB Power Audio Amplifier with volume Control board, (1$ on ebay), a simple push button is dedicated to change station quickly by a simple « press », Continuer la lecture de Si4703 small simple FM radio with Arduino→
I’have finally found an excuse to use my Akeru SigFox board, with some lines on Arduino, two libraries, and a Ethernet shield, you can monitor if your network getaway, or server, website .. what you want in fact, still alive, with a ICMP request. The akeru board is stacked with the Ethernet shield, the loop check is the defined IP adress respond to ICMP request, if not, the akeru board send a SigFox request to the SigFox network, then the callback function send a email alert. Continuer la lecture de Monitoring your network with SIGFOX→
Article rédiger en Français, ce produit n’étant a ma connaissance vendu quand France. WATT&CO est une startup d’une dizaine de personnes, installée dans le Vaucluse.
Watt & Co CH220-5-DOCK, de son nom commercial est une station de charge USB pour téléphone mobile, j’en ai eu trois qui sont passer entre mes mains, tomber en panne quasiment au même moment, le défaut vient d’une diode qui fini par cramé et rendre inopérant le circuit, la remplacer par une équivalence permet de résoudre le problème.
« Trackuino is intended for use by licensed radio amateurs. By operating on the standard APRS frequency, the signal can be picked up by an Internet gateway and reported on aprs.fi, so anyone with an Internet connection can track the tracker »
The idea of this project was to build a trackuino board with small gps module, low power arduino pro mini (3.3v @8mhz), a VHF transceiver DRA818V, and power management integrated. Continuer la lecture de APRS tracker with DRA818V→
I have finally find a little bit of time to finish the build of my EasyIOT temp/humidity sensors, based on DHT22, each sensor send every 30 sec, a updated temperature and humidity value. Every sensor is based on arduino 3.3v@8mhz, plus LCD 2×8, DHT22 and ESP8266.
