SKU: DFR0645-R
This 4-digit 7 segment display module has two colors to choose: red and green. It supports 8-level brigthness adjustment and can be drived via two normal I/O ports. Standard IIC pins, compatible with Gravity interface, free from MCU scanning.
1. Example Code for Arduino-Digital Tube Display
Display experiment of the digital tube. Users can learn how to use the DFR0645 module to display characters and variable values on a 4-digit 7-segment display, including initializing the module, setting the display area, and printing characters/decimal values.
Reference
FAQ
I am using an ESP32 Dev Kit C in various industrial applications, and they are awesome for ease of use etc. The problem that I am running into is that when I am using multiple I2C devices with it, it can lock up the I2C bus. I ran code that scans for I2C addresses, and then prints them to the serial monitor (http://robojax.com/learn/ar.... The result is that it will show over 50 addresses. I tested using a level shifter and without a level shifter, getting the same result. I haven't tested using pull up resistors yet, but that is my next step. Does anyone have any other suggestions?
Was this article helpful?
