I checked and I found MPC6022, but also I found NE5532 which has a slightly higher slewrate. I checked everything about it and I think I can use NE5532 but before I do, I'd really appreciate it if you tell me your opinion about it.
I currently can't get my hands on a MCP6L92. Would you please tell me if you know of any substitutes?
Many thanks for sharing you brilliant idea.I have a question and that is would you please share the ratio of solder dust to flux?
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There are various videos on Youtube that illustrate thisaction.Here is one of them:https://www.youtube.com/watch?v=cPXO8CbYlKw
I have made sure the LCD is connected the right way and operational and I have also checked SCL and SDA.No I don't use the above circuit. I use a PCB of my own design based on the pins of the DIP package.Yes I can and am willing to share pictures of the setup and the schematics but somehow I can't upload them here :|
I changed the LCD, the crystal, the microcontroller and even the i2c module. I still get nothing. I tried both the hex files from you(with and without bootloader) and also the file Cesar shared on allaboutcircuits.com . I have no idea what else to do :(
OK, but before I try your software that you have kindly shared, I was wondering, I don't have an Arduino so I turned the .ino file to .hex file and used an AVR programmer. Do you think this has anything to do with it?
Yeah it did. I tested it actually before assemblying the circuit on a breadboard circuit with AVR that it's only purpose was testing lcds.
Hi. I am having some problems with the LCD. when I connect everything, and apply power, the only thing that the LCD shows is that it’s upper row gets lit. In the beginning I though it might be due to the adjustment of the variable resistor on the I2C module, I tinkered with it a bit and had no results. Afterwards I thought maybe the pull-up resistors of SCL and SDA aren’t onboard so I tried this as well and still I get the same result. Can somebody please help me. I have ran out of ideas about what might be the problem. Also if my explanations of the situation seam vague, I have taken a picture too.
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