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Does anyone have any info/shematics on Clayton 12/220V inverters. I'm espacially interested in the single wire protocol used for remote control.
/Thanks
I have a Palm Pilot display w/ touch part no UG-24UD1 it has a 24 pin connector. Does anyone have a pinout for this display, or schematics for a Palm Pilot where the LCD connection shows.
Thanks.
DSC Power832
Hi, does anyone have a eprom image file for the prom in a Power832 alarm system. (the board is called PC5015). I have version 1,03 but need a newer version.
picotech adc10 schematic
Hi, does anyone have the schematic for ADC-10 / ADC-40 or any other scope/logger from pico technology. (https://www.picotech.com)
Since they have the software for free download, it would be interesting to be able to build the hardware cheaply!!!
/Froggy
If you can use chips instead of modules (cheaper) I would strongly recomend nRF905 from Nordic VLSI (http://www.nvlsi.com/) It is easy to use and relativly cheap, about 4USD in small qty(1-10).
/Froggy
Re: Home Made Power
Have you seen the Tim Nolan MPPT:
**broken link removed**
Its a very interesting design based on sw runing on a pic. The software also regulary turn the MPPT on and off to measure the improved effiency for debug purpose.
/Froggy
If you need that precis calibration, why not just rent a calibrated meter and use that as a reference?
and btw at least the melting ice can be very exact at sea level if you keep the mixture of water and ice in a insulated bottle, and wait 30-60 minutes to stabilize after you insert the probe...
The easy way to do it quite accurate is to use a bath of melting ice for 0 deg. and boiling water for 100 deg. This is of course asuming that you are at sea level.
/Froggy
home made lcd panel
How long cable do you have? paralell TFT interface is very senistive to cable length, my experiance says that maximum 2 ft is acceptable. If you need longer cable then select a TFT with LVDS interface.
/Froggy
Why not just consulting the datasheets:
The battery you using has typ. 80mAh capacity.
DS1307 is using 500nA in battery mode (or 800nA if you are using the square wave output)
This gives you:
for 500nA 160000h or 18.2 year
for 800nA 100000h or 11.4 year
the storage time for a lithium battery...
Strange logo...
Hi, Does anyone recognize this logo, I have looked for it in the logo archive on this site but without success! I have a component that I need to find a replacement for in a project. I just need to know what mfg this is.
Thanks!
heatsink blackening
Hi, the thermal resistance increase with about 15% for a silver heatsink, compared to a black anodized one. If the heatsink is mounted horistontally instead of vertically the K factor decrease by another 15-20%.
/Froggy
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