stm32l4 lcd module for sale
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Today, we’ll talk about three subjects that I absolutely adore: an LCD display that spends little energy, STM32 with Core Arduino, and Arduino Mega Pro Mini. This is an infallible trio for the Internet of Things. I’ll then introduce you to the HT1621 six-digit LCD display and create an example control with a code that works on both the Arduino Mega Pro Mini and the STM32 L432KC. A noteworthy detail is that the source code for the two microcontrollers is exactly the same. I won’t change the pinning either. It’s absolutely fantastic!
The HT1621 LCD display has a screen commonly used in multimeters, electronic scales, electronic clocks, thermometers, and electronic measuring devices.
The library name is a tad strange, so I decided to rename it (files, classes, builders, etc.). Its original name is "A6seglcd”. I replaced this name with "lcdlib".
We’ll then include the library responsible for communication and instantiate the control of the display. The "const char" function exposes an array table. It is through these vectors that you will make the reference of the character that prints on the display.#include
RoenDi is a rotary encoder with an integrated round color display. Based on an STM32L4 MCU, it can be programmed with the STM32CubeIDE or the Arduino IDE, and be used as an information display, an IoT controller, a locking mechanism, as well as in audio applications.
RoenDi rotary encoder with display can be found on Crowd Supply for $99 with free worldwide shipping, but that’s without an enclosure. You’d need to pledge $128 for a complete kit adding a matte black aluminum enclosure, and an ST-LINK adaptor board with cable for programming. Backers will need to be patient, as deliveries are expected to start by June 30, 2023. The main culprit for the long lead time is the STM32L4 microcontroller that should be in stock in April 2023 for orders placed now.
STM32F429 has also LTDC driver for LCD like that, but this driver we will use later. For now we will use SPI for driving in serial mode and some other pins for controlling.
The 32L476GDISCOVERY helps users to develop and share applications with the STM32L4 ultra-low-power microcontrollers.The Discovery kit combines STM32L476 features with LCD, LEDs, audio DAC, sensors (microphone, 3 axis gyroscope, 6 axis compass), joystick, USB OTG, Quad-SPI Flash memory, expansion and probing connectivity. It includes an embedded Ammeter which measures the MCU consumption in low power modes. An external board can be connected thanks to extension and probing connectors.