Vodafone screwed up again

What is most annoying is that Vodafone created the fault and we had to wait two days for the repair. If they had said “oops our-bad” and repaired it same day – even if it was overtime – it would have saved me a lot of time, I wouldn’t be […]

vodafon internet cable connection

68hc11 evs

MC68HC11EVS and M68EM11E20

Time for a tidy up We have a Motorola Evaluation System that is taking up space and will never be used here again.  Originally purchased from Arrow New Zealand back in the late 1990s for a specific project using the 52-pin HC11.  It was not used as delivery was very […]


Strange Microchip PIC behaviour

A 10  minute change that has taken 3 days I needed to change a time delay in a 8-pin PIC12F675 project started 4 years ago but has been updated since.  No problem I thought, change the time, recompile, save a new output file and program some chips. But the chips […]

dip vs soic pic-micro

mouser

Mouser Order Delayed

Conclusion – Resolved Keep enough stock on hand – but how much is enough.  Don’t rely on suppliers to come through if you are caught short. Mouser did resolve the issue and release the order. But we will have a 4-5 day gap in production. Not Always Quicker Being a […]


Weather Station Update

After the failure of the outdoor sender unit and not being able to get a replacement, I have finally had a look at getting a complete new unit working. The new WH1081 looked like the original but would not work with the installed wview software.  I have been considering updating […]

WH1081 with Orange Pi Zero

Tracker versions

FPV Tracker on 2S Lipo – a question from Dave

Question: I just wanted to know the operating voltage for the FPV RC BEACON, when its signal lead is connected to a RC receiver running directly on a 2S Lipo, which can reach 8.4V when freshly charged. Maybe a glider install. Answer: The FPV tracker does monitor the power and […]


Orange Pi Lite and Zero boards

I have a couple of applications in mind and thought these boards looked quite interesting.  Small, low cost reasonably powerful.  So I bought two each of the Orange Pi Lite and Orange Pi Zero boards, and a couple of camera modules. The first application is a weather station, which is […]

orange pi lite sbc

6 position flight mode switch

6 Position Rotary Switch – flight modes

They need modification I got a couple of these 6 position rotary switches from Ebay and fitted one to a Turnigy 9XR Pro transmitter replacing one of the analog pots.  The solder pads are labelled VCC, GND and FLAP, I assumed for +5V, GND and SIgnal. The result was a […]