2M Elegance glider minor crash
It was a nice early evening at the flying field. Not too much wind and a bit of lift early on.I was moving the sticks and it just did its own thing. I was stupid enough to do it twice; just to prove...
View ArticleStandard ESC-BEC rating and heatsink
I decided that the ESC-BEC caused a problem in my 2M Elegance glider and had to do something about it. A minor crash due to the BEC getting hot and shutting off. The BEC powers a 8-channel 2.4G...
View ArticlePower supply replacement – Smart House – Kristil
After 10 or more years of operation there are probably many Smart House or Kristil home automation systems that are beginning to act up. One cause can be ageing power supplies. The older power...
View ArticleEmbedded Linux conference talks on-line
It’s amazing how many of the tech-talks are poorly recorded. Considering all the experts that must be floating around and the huge community of follow up listeners, you’d think they could at least get...
View ArticleRC transmitter module failure
Corona CT8J Module I’m using a Turnigy 9X transmitter with ER9X firmware and a few different transmitter modules including this Corona DSSS 2.4G.I recently had a few control problems with the Corona...
View ArticleA simple RTL controler for RC models
I think I’m going to have to pull finger and look at building a simple RTL controller for RC model planes. This post is a series of notes just to put it all in one place and provide some food for...
View ArticleExternal HDD power supply repair
Faulty HDD Power SupplyThis external hard drive power supply was unreliable suggesting a bad solder joint was the cause.It is rated to supply 12V DC at 2A and 5V DC at 2A.InsideInside is a typical...
View ArticlePIC-micro Assembly code example
This is an PIC16F assembly code example. Created originally about 10 years ago. It includes chip configuration and UART RS232 support using buffers and interrupts.The original application was a...
View ArticleWire heating power supply – 25+Amps
This was a small one-off project due to the need to heat 120mm long pieces of 1.5mm stainless steel wire as part of an industrial process.It had to be quick, simple and safe.In total, about 7 hours...
View ArticleAnother failed Seagate hard drive
Another Failed hard driveOver the last several years I’ve lost three 500G and the latest a 1TB hard drives, all Seagate. All started making occasional clunking noises that turned into a regular...
View ArticleESC selection, failure and reliability
Selecting a ESC for your RC model Always Over-spec the ESC to be safe, even with the “good” ones. I’d suggest 50% over, and the HK ESCs are OK. For a 40A rated motor, choose a 60A ESC. Always start...
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