As a new member, I'm trying to be careful and not transgress the rules, so I am deliberately not posting in the New Ports section, as I don't have the relevant information to hand.
I'm a satisfied user of Rockbox on a Sansa Fuze v2
It's not exactly mainstream, but I wondered if anyone had noticed the device named the '
Playdate'. It is a bit odd, but the BOM looks interesting:
Playdate:The SpecsCPU
180 MHz Cortex M7
SDK supports Lua, C
Storage
16 MB RAM32 KB L1 Cache
4 GB Flash
Size
76 × 74 × 9 mm
Wireless
802.11bgn 2.4 GHz Wi-Fi
Bluetooth® (coming soon)
Sound
Built-In Mono Speaker
Stereo Headphone Jack
Condenser Mic + TRRS Mic In
Display
400 × 240 1-bit
Inputs
D-Pad
A + B
Sleep + Menu
3-Axis Accelerometer
Crank
Cost
$179
Plus Taxes & Shipping
The
iFixit teardown goes into more detail:
STMicroelectronics STM32F746IGK6, an ARM Cortex-M7 based SoC
4 GB of Kioxia (formerly Toshiba) THGBMDG5D1LBAIT eMMC NAND flash memory
128 Mb of Winbond W967D6HBG low-power SRAM
Cirrus Logic CS42L52 audio codec w/ headphone/speaker amplifiers
Espressif Systems ESP32-D0WDQ6 Wi-Fi and Bluetooth SoC
The screen is a single bit-depth LCD. Might be a Sharp LS027B7DH01 or LS027B7DH01A
The Cirrus Logic codec details say
Low Power Codec with Class D Speaker Driver.
The CS42L52 is a 24-bit, low power stereo audio codec providing up to 1 W per channel of highly efficient Class D amplification to external speakers, or enough power to drive 44 mW per channel into stereo headphones and consumes only 13 mW of power at 1.8 V in playback mode. The CS42L52 offers the flexibility to run its core from a single power supply and directly connect the Class D amplifier to the battery supply for a more efficient operation. With its ground-centered outputs, the CS42L52 helps to reduce clicks and pops during start up, improves low-end frequency response and eliminates costly, space-consuming DC blocking capacitors.
Assuming it does make it into commercial production, is it a viable or even interesting target?
Clothears