Based on our record, esp32 should be more popular than Personal Robots. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Esp32.net has a bunch of additional references, projects, and places to gather information. Source: almost 4 years ago
Closest thing is the ESP32 from Espressif Systems See ESP32 link for details. Since you specifically asked for open source, so some tinkering and compile is required. Source: about 4 years ago
There's also many more dev boards, chips and modules listed here, though they may not necessarily have platformio IDs. Source: about 4 years ago
Find a good robot on personalrobots.biz , I'd suggest Boxer as its more fun, cheap and without any subscription to pay. Source: about 4 years ago
Intel NUC boards - Four-by-four inch Intel NUC boards come with a soldered-on processor.
Lovot - A little robot that just wants to be loved
Intel NUC - Intel NUCs are available as Kits(Barebones), Boards(Mainbaord only) and as perconfigured Mini-PCs.
MODI - Create anything you want with robotics of things
SanCloud BeagleBone Enhanced WiFi 1G - One amongst SanCloud's range of BeagleBone Enhanced SBCs - each are enhancements of the BeagleBone Black (BBB).
Bakiwi - The fabulous DIY walking robot kit