ESP32 E‑Paper Status Display

ESP32 E‑Paper Status Display

Using an ESP-32 board with an embed­ded E‑Paper dis­play, I cre­at­ed a gad­get that shows sta­tus infor­ma­tion from my web serv­er. E‑Paper, also known as E‑Ink, only needs pow­er when being updat­ed, and uses no pow­er between updates. This means that the gad­get can be pow­ered for weeks from a recharge­able bat­tery. The pur­pose of … Read More

Telepresence Internet Controlled 4G/LTE Long Range Robot Car

Telepresence Internet Controlled 4G/LTE Long Range Robot Car

For a long time I have want­ed to build a remote con­trolled robot car capa­ble of being con­trolled via the Inter­net, at long ranges using 4G/LTE cel­lu­lar con­nec­tiv­i­ty. So I did. I used a Rasp­ber­ry Pi 3B+, an Adafruit DC and Step­per Motor Hat, and a Log­itech C930e USB UVC web­cam. The robot is capa­ble … Read More