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Driving the LCD - share your experience

Anthocyanina

Hi! So, I've been working on the software for this challenge and have reached the point where i need to figure out the LCD. The datasheet has a character map and and the addresses for the position of each character. I don't have much experience with driving LCDs so I'm struggling with where to start. Have any of you figured out the LCD yet? 

I found a couple threads on the arduino forum that talk about this display, with people saying you could use the HD44780 libraries, or similar to drive it. I'll be trying that with an arduino board first, but still would like to hear about your experience with this display so far. 

Thank you!

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  • has anyone had success driving the LCD with the provided computer for hours? 

    I'm using javagoza's library, and have been getting crashes related to the lcd in my logging script like this one:

    image

    I have no idea what might be causing the crashes. I went to read the lines mentioned in the error, re-checked the connections, but this keeps happening regularly. I don't know how tight the timings are for the i2c bus, i read years ago that you couldn't drive neopixels with a Pi because of timing issues, so perhaps it's that? 

    I've been watching for errors, and managed to catch one live. I immediately re-launched the script, but it ran fine. I doubt it's a connection problem, because nothing moved within the half a second it took me to arrow up then enter to re-launch the script, or well, i doubt anything did. 

    The enclosure has been inside since yesterday as i thought maybe it getting too hot was messing with the display's controller? 

    That doesn't seem to be the case, or who knows, maybe the heat damaged in in a weird intermittent way? 


    thank you!

  • in reply to Anthocyanina

    I've run for weeks continuously and reasonably hot (up to 60 C in the enclosure).  I currently only have the BME280 and LCD sharing the I2C bus, but I've also run with a VL53L1X attached.  I have a 40 cm harness to a protoboard with the sensor and LCD.

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