I have acquired my third mesh node, the M5Cam board, and through some testing it appears to be working.
Fig. 27 - The M5Cam browser interface
Also, I finished up the demo of two-way communication by displaying the transmission log on SSD1331 OLEDs. Video in the tweet below:
Two-way ESP-NOW communication, sending 250 bytes of data back and forth. Transmission log displayed on SSD1331 OLEDs. @EspressifSystem @ESP32net pic.twitter.com/ODXRU1dkS4
— David M. (@Null_Theory) August 14, 2019