I’ve just built the first of my new revision 3 RS232 Bit Rate Converter. It has the following improvements:

Cleaner, more stable RS232 output signal
Can accept a range of power supply voltages from 5V up to 12V
Has a professionally designed and printed vinyl label instead of the rather amateurish ones I was making myself

The design is [...]

After looking at my sales figures, it seems the majority of my RS232 Rate Converter sales are going to America. I’ve only sold two into Australia ever, so it seems to me that pricing it in Australian dollars is not appropriate for this product, especially since the Australian dollar has been moving quite a lot [...]

One of my peeves about the electronics business is the poor availability of parts. I’d found this brilliant AP1115 power regulator from Diodes Inc. which I’ve been using for months in my RS232 Rate Converter but now, you can’t get them anymore. I haven’t found a supplier who stocks this part since June and my [...]

Looking at the RS232 Bit Rate Converter website, I thought it needed more documentation so potential customers can find out more about the product before committing to buy one.
So I now have an FAQ and I added more details to the user manual, more than doubling it’s length. The user manual is now available in [...]

I’ve been working on a few things to improve the RS232 Bit Rate Converter. Here’s my new revision 3 circuit board.
There are some extra capacitors to smooth out a little noise I was getting in the serial data stream and I have also outsourced the machining of the end panels.
The changes are to eliminate some [...]