I am involved in a sport where dogs and humans compete to complete a timed obstacle course. For training, I created devices that create an IR beam between two units and when the IR beam is broken, it sends a UDP message to a WiFi access point which starts/stops a count-up timer until the beam is re-broken and restored. The access point maintains the WiFi network in which these devices operate. Here is a link to a 1-minute youtube video of the system at work March 2, 2023 - YouTube
So basically, what I created was an IR beam break stopwatch, but the WiFi controller/timer was too big and bulky so I decided the best thing to do is miniaturize the WiFi controller/timer and make it a wrist wearable. The link above shows my first attempt.
but... I had no way to make it portable at the correct size since this unit is powered by 3-AA batteries. So I looked into an alternative - the ( MakerFocus Wi-Fi
Test Tool DSTIKE Deauther Watch SE ESP8266 ESP-12F Programmable Development Board with Buzzer OLED Display)
which was advertised as using the same components as my prototype, namely, a Wemos D1 mini (ESP8266) and for the display an SH1106G. I purchased online and all of the timer program logic works, but nothing shows on the OLED display.
I also tried the wearable from DStrike but I couldn't find the appropriate hardware files to put into Arduino.
I'm asking for help from anyone who has reprogrammed a wearable wristwatch type wearable. I don't need watch functions or any apps or menus. I only need the capability of being a WiFi device that can display text-based time.
Thanks
