I’ve not blogged here for a few days. Unfortunately my “real job” got very busy. In the meanwhile I received another package of bits I had ordered from China weeks ago and mostly forgotten about ;) Among other things in this package were some clone Arduino Mini Pro boards. These little boards have a SMD …
Continue reading ‘Arduino Mini Pro and ultrasonic distance sensor’ »
Just a relatively short post this time, as I ease myself back into the blogging habit. In case you are interested; since my last post I have been travelling round the South West of the UK with my family, spending time with friends and relations along the way. Very pleasant to have a break, but …
I’ll admit up front that analogue electronics is not my strong point. Many years ago when I was at school, I had loads of fun making things out of nand and nor gates, inverters, flip-flops and so on, but I was never able to make even a simple op-amp circuit do anything useful. Fast forward …
Continue reading ‘Analogue electronics for a bat detector’ »
I’m still looking for a way of getting analogue input into my Raspberry Pi so I can build an ultrasonic “bat detector”. I looked at this a few days ago, and came away disappointed with the slow speed of all the analogue input devices I could find. I think I may have found an answer. …
Continue reading ‘A possible candidate for analogue input’ »
Unlike many embedded controller boards, the Raspberry Pi does not have any analogue input. For a lot of uses this is not an issue, but as I progress with my plans to build an ultrasonic recording and processing system (a.k.a “bat detector”) I’m beginning to think that I need to add some analogue input to …
I’m a big fan of bats. I even went so far as to make a video at Natterer’s Wood in Bury St Edmunds. I have borrowed a “bat detector” (a device for listening to the ultrasonic noises made by bats as they fly and hunt) a few times, and it has always been very interesting, …