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An Open Source Mobile Phone Based on the ESP32

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Re: An Open Source Mobile Phone Based on the ESP32

#3
As cool as this is, it's resistive touch which is alright but it's no capacitive touch, and it's 2G which is largely useless for mobile connection in a lot of places, and certainly useless if you need data, which most people do. Still, excellent proof of concept and also it might be a fantastic tool to be able to build yourself in some places.

Re: An Open Source Mobile Phone Based on the ESP32

#5

As cool as this is, it's resistive touch which is alright but it's no capacitive touch, and it's 2G which is largely useless for mobile connection in a lot of places, and certainly useless if you need data, which most people do. Still, excellent proof of concept and also it might be a fantastic tool to be able to build yourself in some places.

Hope it isn't similar flop as "Lilygo TTgo T-Watch" which it's barely usable but not due to meager hardware specs. It's the software with hardwired long boot sequence so you either live with the ESP draining battery out in few hours or waiting some second every time you wake the clock up. The manufacturer just assumed you want it to be always on and connected and counting steps and whatever, battery life be damned.

I would be fine if it wakes only once in 5 minutes to get online or on pushing the physical button. The hardware is there. But the manufacturer just don't care.

https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library/issues...

Re: An Open Source Mobile Phone Based on the ESP32

#7

Seeing the speed at which governments across the world are keen on breaking encryption or enabling backdoors, this appears to be one of the ways we're headed for.

These open source / DIY mobile devices rely on an IC to perform the telephony side of things. In this example, a SIM800C made by SIMCom which could require additional "features" to pass certifications. How would you ensure there is no existing backdoor in the chip's firmware?

Re: An Open Source Mobile Phone Based on the ESP32

#8
post #7

Seeing the speed at which governments across the world are keen on breaking encryption or enabling backdoors, this appears to be one of the ways we're headed for.

These open source / DIY mobile devices rely on an IC to perform the telephony side of things. In this example, a SIM800C made by SIMCom which could require additional "features" to pass certifications. How would you ensure there is no existing backdoor in the chip's firmware?

> How would you ensure there is no existing backdoor in the chip's firmware?

What is the worst thing that backdoor could do?

Re: An Open Source Mobile Phone Based on the ESP32

#9

Seeing the speed at which governments across the world are keen on breaking encryption or enabling backdoors, this appears to be one of the ways we're headed for.

I guess one of the other ways is: "have a phone because it's required for website accounts and work -- don't do anything on it." Talk to your friends and family in person, which is _kinda_ arguably healthier. No social media, or hell, maybe not videogames either.

Re: An Open Source Mobile Phone Based on the ESP32

#10

As cool as this is, it's resistive touch which is alright but it's no capacitive touch, and it's 2G which is largely useless for mobile connection in a lot of places, and certainly useless if you need data, which most people do. Still, excellent proof of concept and also it might be a fantastic tool to be able to build yourself in some places.

This one is 4G with a more powerful processor.

https://www.lilygo.cc/products/t-sim7600?variant=43076944298...

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