Browsing All Posts filed under »Testing«

Integration Jam Session

September 21, 2014

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Njay got the burned bridge rebuilt, tested, and “burned-in” for an hour at 10Amps, so we got together again to finish integrating the system. This time with the 500 kbps I²C bus between the RasPi and the Power Bridges, so that the link is loud and clear. Njay was afraid that such high speeds would […]

Tuning out the glitches

September 20, 2014

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WE ARE AT THE FAIRE RIGHT NOW! 🙂 JOIN US! Meanwhile we’ll keep posting the story behind the project… Me and NJay finally got together for a hacking jam session to find out what the heck is going wrong with the I²C comms bus between the RasPi and the Power Bridges. This is where his […]

Vroom vroom

September 19, 2014

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ATTENTION: THE Lisbon Mini Maker Faire 2014 OPENS TO THE PUBLIC TOMORROW, SATURDAY. GET YOURSELF REGISTERED ONLINE AS A VISITOR SO YOU DON’T HAVE TO WAIT IN LINE AT THE VENUE. IT’S FREE OF CHARGE, BUT YOU HAVE TO REGISTER FIRST. And now, back to our soap opera. 🙂 The time has come to finally […]

Communications test, system bring-up

September 18, 2014

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So, the hardware was finished and basically tested. Time to go for the software and get all this stuff to actually do something together. 🙂 I had to spend some time updating my motor “device driver” module to be compatible with Njay’s new power bridges. I took my “latest and greatest” version (which had been […]

New wiring, power test

September 17, 2014

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Vnevoa: Due to the new I²C communications bus scheme, I had to make new cables to connect the Raspberry Pi controller to Njay’s power bridge controllers. This cable is a simple “Y” shaped common bus made from CAT-5 network cable. The network cable is cool for the job because it’s already got 4 twisted pairs […]

Power bridges ready. Or maybe not.

September 12, 2014

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Njay: Hi, something happened. No, I didn’t burn the bridges. 🙂 But I goofed up again. Before handing them over to you I wanted to make a specific measurement now that I’ve got a 4 channel oscilloscope: to see the Vgs & Vds voltage wave forms in 2 parallel FETs. It’s a tough one to […]

Add-on boards are working!

September 9, 2014

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NJay: I got them both to work! Whew! Vnevoa: HOORAY FOR NJAAAAYYYY!! 😀 What now, do I get to play with them or you keep them a little more for testing with the bridges? NJay: Take it easy, I need to test the whole thing together, the 2 bridges and the 2 add-ons controlled by […]