LiquidCrystal_PCF8574
hl-alyx-glove
| LiquidCrystal_PCF8574 | hl-alyx-glove | |
|---|---|---|
| 4 | 1 | |
| 127 | 12 | |
| - | - | |
| 3.0 | 0.0 | |
| 10 months ago | over 2 years ago | |
| C++ | C++ | |
| BSD 3-clause "New" or "Revised" License | MIT License |
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LiquidCrystal_PCF8574
- D1 Mini problems connecting to 1602 blue display with I2C backpack
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ESP32 connected to a 16x2 LCD Display
There is an I2C lcd adapter (using PCF8574) that drives the LCD using a I2C interface, saving you a bunch of pins. That way you can use local sensors as well, if you want.. Google link - Link to library
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Does anyone know what could possible cause this output? More info in comments
I don't have any bare displays, but some of the I2C backpack displays I have wouldn't work with the stock library. I finally found one here that worked reliably with a range of displays, but that won't solve your problem as it's all I2C and not nibble-mode writes.
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I2C 16x2 LCD display
In addition to the other two comments, I'll add: I've had issues over 25 years with the HD44780 initialization sequence... it can be horribly sensitive to the exact timing. I tried a couple of different libraries for the backpack displays and had the best luck with https://github.com/mathertel/LiquidCrystal_PCF8574
hl-alyx-glove
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Real-Life Gravity Glove. Finished version.
I invite everyone to check out the [source files on GitHub](https://github.com/StarGate01/hl-alyx-glove), where I also publish technical documentation and basic building instructions for the crafty among the community. Feel free to ask any questions.
What are some alternatives?
IRremoteESP8266 - Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/
MD_MAX72XX - LED Matrix Library
PCF8574_library - PCF8574 library. i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple to use and encoder support.
pcd8544 - Minimal footprint library for Philips PCD8544 LCDs on the Arduino.
ethersweep - Open Source, easy to use Ethernet connected stepper motor controller. Built in FreeCAD, KiCAD and Arduino.
LiquidMenu - Menu creation Arduino library for LCDs, wraps LiquidCrystal.
btc-ticker-esp8266 - realtime bitcoin price on 7 segment display with arduino on esp8266
GEM - Good Enough Menu for Arduino
ESP32StockTicker - Basic stock ticker using ESP32 and MAX7219 LED Matrix. Produces a webpage so user can input a ticker.
ArduinoJson - 📟 JSON library for Arduino and embedded C++. Simple and efficient.
kosmo-multitool - Arduino Nano Every based development platform for DIY synthesizer enthusiasts.