A while ago I successfully used a Sparkfun Polar Heart Rate Monitor Interface (SEN-08661) to convert a 'Spirit' cross trainer to pick up the Bluetooth signal from my Polar H10 chest strap instead of needing to use their proprietary wireless chest strap. (This was so I could use just one strap for both my phone and the machine).
The SEN-08661 interface board, often used with Arduino or Raspberry pi systems, receives the Bluetooth HR signal from the chest strap and outputs a simple 5v pulse for each beat, which I fed into the training machine in place of the receiver that was in there originally.
I now want to repeat this with a Lifefitness R1 recumbent bike but unfortunately it seems the SEN-08661 board is no longer available anywhere.
Does anyone know of a similar development board that I could use instead to pick up a Bluetooth HR signal from a Polar strap and output a pulse train?
Every search I do brings up loads of Bluetooth HR monitors but no Bluetooth HR receivers.
I realise this is not really a programming question but I'm hoping some programmers might know where to get the hardware (in the UK) from which to get the signal to process using programming!
