Here is what I would like to use 12 of 14 segment display with NodeMCU Wifi. I would like to use my Android phone to send the message to NodeMCU by WiFi and show the message on 14 segment displau.
Can we use NodeMCU with 12 of 14 segment displays? Which chip should we use driver for 12 of 14 segment? I was thinking to use ULN2803 or MAX7221 for driver on 14 segment. I am not sure how to use it or wire it between NodeMCU and 12 of 14 segment display. Can someone help me with it? I believe one ULN2803 can run 4 of segment display. My guess I will need three ULN2803 to run 12 of 14 segment display. Please contact me or send schematic for it. My email address is reidsim at gmail dot com.
Reid