3pcs Four Digital Tube LED Display Module TM1650 with Button Scanning Module 4-wire Driver I2C Protocol

Parameter 1 Size 42 x 36mm length x width 2 Digital tube size four in one 0 36 inches3 Driver chip TM1650 four in one digital cathode tube4 Voltage DC 5V5 Current about 30ma6 Service life 50 000 hours7 Cable length 30cm8 Drive mode I2C protocol9 Working temperature 40C 85C Features 1 Easy connection with just four wires2 Only occupy two IO ports of the microcontroller greatly reducing the IO port of the microcontroller3 Eight levels of grayscale can be adjusted and can be adjusted by writing the value of the register4 No need to dynamically scan the main program of the MCU which greatly saves the CPU usage of the MCU5 Convenient connection with various MCU control boards for display and parameter setting adjustment6 The interface adopts white high quality plug which is convenient for plugging and unplugging and convenient for wiring 7 Widely used can be used for the circuit board of the MCU control board that needs to expand the display etc 8 Four fixing holes 3mm for customers to install equipment panels Use For counters delays frequency meters stopwatches voltage and current displays etc Package includes 3 x Four Digital Tube Display Module