However, it’s going to be a topic for a future tutorial as we didn’t cover the I2C in STM32 MCUs yet. In this way, you save up a lot of valuable GPIO pins for other uses and it only requires 2 wires on the I2C bus. The best way in my opinion for interfacing alphanumeric LCD screens is using an external I2C LCD driver chip. We’ll port the LCD driver in 4-Bit mode to make it easily configurable and portable across most STM32 microcontroller devices. Today’s tutorial is built upon the previous LCD one, and it’s assumed that you’ve got a basic understanding of the topics discussed earlier. In order to know, the internals of the LCD driver IC, it’s registers, commands, and how it works and gets initialized, etc. That’s why I highly recommend that you check it out right now. The Alphanumeric LCD 16×2 Tutorial did highlight everything you need to know. Assuming it has the standard Hitachi LCD driver HD44780 controller. Other types of LCDs provide different features such as the number of columns and rows (characters) and maybe colored display, and also different interfaces (parallel, spi, i2c, etc).įor this tutorial, we’ll consider the 16×2 LCD with a 16-pin header interface. You can use it to display text messages to the user, number, etc. We typically add a 16×2 Alphanumeric LCD to small embedded systems & projects to enhance the user experience and UI of the device/project. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network (EPN) and. Logic Analyzer (on ) ( on eBay)Īffiliate Disclosure: When you click on links in this section and make a purchase, this can result in this site earning a commission.FeelTech DDS Function Generator: KKMoon FY6900 (on ) ( on eBay).
My Digital Storage Oscilloscope (DSO): Siglent SDS1104 (on ) ( on eBay).Some Extremely Useful Test Equipment For Troubleshooting: ★ Check The Full Course Complete Kit List ST-Link v2 Debugger or ( eBay) QTY Component Name 🛒 🛒 2 BreadBoard Amazon eBay 1 LEDs Kit Amazon Amazon eBay 1 Resistors Kit Amazon Amazon eBay 1 Capacitors Kit Amazon Amazon eBay & eBay 2 Jumper Wires Pack Amazon Amazon eBay & eBay 1 9v Battery or DC Power Supply Amazon Amazon Amazon eBay 1 Micro USB Cable Amazon eBay 1 Push Buttons Amazon Amazon eBay 1 Alphanumeric LCD Module Amazon eBay.Blue Pill STM32-F103 (ARM Cortex-M3 72MHz) or ( eBay).Nucleo32-L432KC (ARM Cortex-M4 80MHz) or ( eBay).All the example code/LABs/projects in the course are going to be done using those boards below.
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