Timeline for 8051 to I2C backpack/4 bit LCD Byte Construct Probelms
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 31, 2020 at 23:39 | vote | accept | Nanosynth | ||
| Mar 31, 2020 at 22:52 | answer | added | Mattman944 | timeline score: 1 | |
| Mar 31, 2020 at 22:45 | comment | added | brhans |
You need to set and maintain all the data bits & control bits at the same time. So to write an 'H' in 4-bit mode: send 01110001 (setup the high nibble & RS), send 01110101 (set EN while maintaining the previous bits), send 01110001 (release EN while still maintaining the others), then do the same for the low nibble: 00100001, 00100101, 00100001.
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| Mar 31, 2020 at 22:10 | review | First posts | |||
| Apr 1, 2020 at 5:23 | |||||
| Mar 31, 2020 at 22:05 | history | asked | Nanosynth | CC BY-SA 4.0 |