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Digging through my bits box the other day I found three Ciseco R003 ERF modules. Two of the modules are exactly like the one shown in this post. I think that I bought them just before Ciseco closed down but didn't have an immediate use for them. I would like to use them now, but cannot find any...

I am trying to measure the elapsed time between two events, in the region of 20 to 30 minutes apart, to a roughly 1msec precision. I have a clock crystal oscillator (32768kHz) and a 7-stage binary divider delivering clock pulses to a 20X2 at nominally 4msec intervals and I am counting the pulses...

I have spent the evening trying to understand interrupts on the 20X2. I am using an AXE091 Development Board with the following code : ' 20X2 interrupt testbed #terminal 9600 #picaxe 20X2 #no_table #no_data symbol LED1 = B.3...

I want to link a Picaxe project with a mobile 'phone app. I have a Bluetooth link working with an HC-05 module - no problems. The data that I want to transfer (in both directions) are variable length binary records. The first byte of data defines the data length, typically 10 to 20 bytes. I...

I want to measure a roughly three second time period to a precision of 0.0001%. The event is repeatable so measuring the time for, say, one hundred such events (about five minutes) and doing the calculation would not be a problem and would help achieve the accuracy. I expect to use some form of...

I have been trying for some time to communicate with an 08M2 using Bluetooth. I am using a AXE091 board. I have an HC-05 and an HC-06 module. I know that the modules are good because if I wrap Rx and Tx on the board everything that I send comes back. What I am trying to do is a wrap test through...

In the manual the notes for the serin command warn against trying to handle "complicated datagrams" at speeds above 4800 baud. I am only moving a handful of incoming bytes into storage to be processed later - nothing complicated there - and I would like to be running at 9600 baud. More...

I built several Picaxe projects in the past but have been away for five years or so playing with Android applications. Now I would like to do a Picaxe data logger type project with a Bluetooth (HC-06) module to upload batches of collected data to my Android 'phone. I cannot tell whether this...