mastercare wrote:Hi Rob
just been looking at the s15351 board and the arduino im not into programming at all i notice arduino uses a c++ code but what is this board doing in the application im wanting i understand the s15351 can generate various freqs or does one board control the other, im a bit confused?
Hi Paul, the SI5351 has an I2C data bus that receives a frequency word from the Arduino micro, so in simple terms if you wanted a fixed oscillator running at say 17.6MHz then you would define this in the Arduino software, or if you wanted a VFO, like what I use for my homebrew rig then you would implement a rotary encoder which sets the frequency when you spin the dial - the Arduino controls the SI5351.
I can send you the code if tel me what you want the SI chip to do, I could even program an Arduino Nano ready and post it to you - these Nano boards are only £3 each off Ebay and the Adafruit SI5351 breakout boards are about £8.
Hope that answers your question, just shout if you need more info.