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Title: stm8s003f3 Post by: David_1 on February 08, 2021, 09:40:23 21:40 Hi all Ive been away awhile :)
so my new plan ... Van Life well sort of inside these Chinese diesel heaters is an ECU, It talks to the display/controller both ends seem to contain an ST chip. I thought getting the code out would be easy so I started buy cheap pcbs that should contain similar chips.. I have failed on such a scale I wont even admit how many W1209,s ive bought. I gave up there, so new plan just buy the little dev boards with a power led and led connected to pin 20. Write code the flash LED.. I have code but still waiting for more dev boards.. The hack to extract code is just a glitch on the reset pin I think, but it needs to be fairly fast... once I can get code out of a sample chip I will look at the more expensive ECU pcb's Back in the old days it was acid and lifting lids.. I hope this one is a little less dangerous.. This is just a place to document, where I am and if I succeed. But I will post my findings good or bad :) like this https://store.siqma.com/stm8s003f3p6.html oh this is not an advert delete link if not seen as helpful.. ! Title: Re: stm8s003f3 Post by: David_1 on February 09, 2021, 09:29:11 21:29 https://www.ebay.co.uk/itm/4-Digital-LED-Blue-Tachometer-RPM-Speed-Meter-Hall-Proximity-Switch-Sensor-NPN/313333175769?hash=item48f41cd5d9:g:1IEAAOSw0iRfzecv
So I now have bought three of these all contain the stm8s003f3 ... the W1209 seems to be made with something else ! Title: Re: stm8s003f3 Post by: pickit2 on February 09, 2021, 11:19:43 23:19 the price has gone up double to what I paid, but that was before Brexit. they do have SWIN conn.
Title: Re: stm8s003f3 Post by: David_1 on February 12, 2021, 03:31:23 03:31 https://www.aliexpress.com/item/4000996539208.html?spm=a2g0s.9042311.0.0.22894c4dSa4yMx
arrived but I payed 52 pence each... prices change so quick LOL anyway I got 8 boards.. Now building glitch device.. will post again when I have news... wish me luck LOL |