Rei Vilo 695 Posted June 7, 2013 Share Posted June 7, 2013 (edited) Please find a library for the I INA219_Distribution206.zip Edited June 8, 2013 by Rei Vilo spirilis, bluehash and MichelKohler 3 Quote Link to post Share on other sites
Rei Vilo 695 Posted June 7, 2013 Author Share Posted June 7, 2013 There's a typo in the code line 128 text = String("0223456789")[number % 10] + text; should be text = String("0123456789")[number % 10] + text; Distribution 206 fixes this, to be found on the leading post of the thread. Quote Link to post Share on other sites
bluehash 1,581 Posted June 8, 2013 Share Posted June 8, 2013 There's a typo in the code line 128 text = String("0223456789")[number % 10] + text; should be text = String("0123456789")[number % 10] + text; Distribution 206 fixes this, to be found on the leading post of the thread. You are on a roll! spirilis 1 Quote Link to post Share on other sites
spirilis 1,265 Posted June 8, 2013 Share Posted June 8, 2013 I sampled some of these after @@oPossum did a project with them. Do you know if these accurately measure uA range or are they not well suited for it?Could be the basis of another PowerScope... edit: Nevermind, it depends on the current shunt resistor you use, forgot that you had to supply that Sent from my Galaxy Note II with Tapatalk Quote Link to post Share on other sites
Rei Vilo 695 Posted June 8, 2013 Author Share Posted June 8, 2013 That's an interesting project! According to the specification sheet, ADC Basic Resolution is 1 LSB Step Size = 10 ?V for the Shunt Voltage, obviously to be combined with the shunt resistor for the ?A accuracy. The INA219 supports the transmission protocol for fast (1kHz to 400kHz) and high-speed (1kHz to 3.4MHz) modes. Quote Link to post Share on other sites
pabigot 355 Posted June 8, 2013 Share Posted June 8, 2013 Learn more at my http://weebly-link/695497565843496057'>I spirilis 1 Quote Link to post Share on other sites
bluehash 1,581 Posted June 8, 2013 Share Posted June 8, 2013 This link appears to generate a random web lookup; I've gotten a list of local banks and a pseudo news article advising me to invest in Biozoom, who apparently have successfully created a medical tricorder. Hmm.. the page won't open now. @@Rei Vilo Can you fix it. Quote Link to post Share on other sites
Rei Vilo 695 Posted June 8, 2013 Author Share Posted June 8, 2013 How strange! Here's the link: http://embeddedcomputing.weebly.com/isup2c-voltage-current-power-ina219-sensor.html Quote Link to post Share on other sites
4yang 0 Posted November 20, 2013 Share Posted November 20, 2013 may i know where did you buy the INA219 shown in the pictures?the one soldered on a PCB with 8 pins Quote Link to post Share on other sites
Rei Vilo 695 Posted November 20, 2013 Author Share Posted November 20, 2013 I bought the chip and soldered it on a converter to DIP format. I can't remember where I get those converters, sorry. Actually, the converter is more expensive than the INA219 Quote Link to post Share on other sites
4yang 0 Posted November 21, 2013 Share Posted November 21, 2013 hmmm..... i see. Is it possible to use a CT current sensor for this circuit? Or a Halls effect current sensor? Quote Link to post Share on other sites
4yang 0 Posted November 21, 2013 Share Posted November 21, 2013 One more important question is...... soldering the INA219 will not damage the chip?I'm new to SMD soldering. Quote Link to post Share on other sites
Rei Vilo 695 Posted November 21, 2013 Author Share Posted November 21, 2013 The pitch is 0.050" or 1.27mm so it's doable. There are many tutorials about how to solder SMD, but it appears each one has his/hers own way of proceeding. To practice, you can buy a cheap kit with SMD like this one to learn. This is how I learnt soldering SMD, actually discovering it was easier than expected. Don't be afraid to use binoculars Quote Link to post Share on other sites
4yang 0 Posted November 23, 2013 Share Posted November 23, 2013 wow thx man..... Quote Link to post Share on other sites
4yang 0 Posted December 8, 2013 Share Posted December 8, 2013 hey.... do u have a schematic diagram for this circuit u build? Quote Link to post Share on other sites
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