Based on the Linux doom port on Id software’s GitHub, it runs at full speed on a 480x320 touchscreen, the specs are a dual core 240MHz CPU and 8MB ram, 16MB flash, runs at native resolution with virtual controls and dpad
It’s an ESP32 S3 N16R8 with DOOM1.wad being inside flash, controlled via a capacitive 480x320 touchscreen. (ST7796) It’s a native port of ID’s original Linux doom port on GitHub.
Why? Yes. With a CRAZY 16MB flash and 8MB ram, and a crispy 320p screen, it CAN run doom.
It has LoRa, WiFi, Bluetooth, Sub-GHz, IR, 4G LTE, GPS, a MicroSD card slot, and a 3.5" display at only 15mm thick! its an iteration of my older design which was 30mm thick, it also has USB-C, a 3.5mm headphone jack for audio, 1A charging, and sensors, like an IMU, Fuel Gauge, The only thing that the flipper zero has that this doesnt have, is RFID/NFC which would have made the single sided 4 layer board more expensive, and dual sided, not to mention the noise from the coil loops. This is my third PCB i have ever made!
Made in Kicad 10.
And its also fully OSHW! the files can be found here: https://www.pcbway.com/project/shareproject/4G_Hacker_Phone_0f2b8473.html
It has LoRa, WiFi, Bluetooth, Sub-GHz, IR, 4G LTE, GPS, a MicroSD card slot, and a 3.5" display at only 15mm thick! its an iteration of my older design which was 30mm thick, it also has USB-C, a 3.5mm headphone jack for audio, 1A charging, and sensors, like an IMU, Fuel Gauge, The only thing that the flipper zero has that this doesnt have, is RFID/NFC which would have made the single sided 4 layer board more expensive, and dual sided, not to mention the noise from the coil loops.
Made in Kicad 10.
And its also fully OSHW! the files can be found here: https://www.pcbway.com/project/shareproject/4G_Hacker_Phone_0f2b8473.html
I always wanted the flipper zero to be easy and intuitive to use, instead of an annoying dpad and a monochrome screen, so i am making a continuation of my esp32 s3 smartphone by adding lora, sub ghz, wifi, bluetooth (obivously), gps, 4G LTE, 3.5mm headphone jack that even flagship phones dont have now, IR led for controlling TVs and other devices, and a power switch that cuts of all power to the phone for privacy, it runs the same firmware as my previous smartphone, with new sensors such as an imu, fuel gauge, and finally a pcb that is 4 layers, single sided (meaning anyone can build this with just a reflow oven) 0603 components only, and the total cost is even less than the flipper! Its not delivered to me yet so I only have kicad 3D renders for now.
project files are at: https://www.pcbway.com/project/shareproject/4G_Hacker_Phone_0f2b8473.html