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Pedal load sensor/ power meter for auto shifter.
I have been working on a project lately for my job involving reading extremely accurate pressures out of a load cell that has a large span (300psi)

I was able to read pressure variations to around 0.003 psi. I could not use amplification because of noise issue and the output was max 100mV
To achieve such precision, I used an ADS1510 16 bit DAC coupled with an Arduino and some fancy software based filtering (it took an engineer and me two weeks to calculate those filters!)

Load cells are hard to work with because of their low output and bad signal to noise ratios...

Good work out there!
Si ça a déjà été fait, je peux le faire
Si ça n'a jamais été fait, donnez-moi juste le temps de trouver comment !

That's an incredible level of accuracy. Even though you've got 50 times the voltage to work with its way above what I could achieve. Interesting that you've not used an amplifier. 
Will hire a pedal based power meter one day and check mine for accuracy.
- Oran
I’ve successfully put the NRF24L01 inside the power meters metal case. Wasn’t any bother to do, I just added an extension wire to the antenna of a length recommended by a website. Although other websites say this should not be done but so far its worked. Only half of the antenna extension is actually outside of the case which seems to be enough. These NRF24L01 modules have worked very well and I really like the instant connection compared to Bluetooth. 

[Image: uCG6ZW.jpg] [Image: mZTRuJ.jpg]
- Oran

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