DYI Fastbeta
A scheme compatible with the Fastbeta firmware can be completely assembled on a breadboard
Raspberry Pi 2040 and Raspberry Pi 2350 full-size modules and RP2040-zero (blue) are supported according to the pinout:
- Raspberry Pi 2040 original
- Raspberry Pi 2040 clone Type-C
- Raspberry Pi 2040 clone MicroUSB
- Raspberry Pi 2040 clone black 4/16 mb
- RP2040-Zero clone
- Raspberry Pi 2 2350 clone blue
- Raspberry Pi 2 2350 original
- Raspberry Pi 2 2350 clone red
- Raspberry Pi 2 2350A Waveshare clone black
PSRAM module for additional RAM memory supported
PSRAM connection (RP2040 only):
PSRAM_PIN_CS=GP18
PSRAM_PIN_SCK=GP19
PSRAM_PIN_MOSI=GP20
PSRAM_PIN_MISO=GP21
supported PSRAM ICs:
Espressif ESP-PSRAM64H
apmemory APS6404L
Lyontek LY68L6400
IPUS IPS6404
RP2350 has native psram support. PSRAM connection to the RP2350 differs from the connection to the RP2040. in the RP2350 case the MISO,MOSI and CLK lines are shared with onboard Flash IC but the CS line should be connected to GP19
The most commonly used ESP-PSRAM64H:
PSRAM connection (RP2040 only):
PSRAM_PIN_CS=GP18
PSRAM_PIN_SCK=GP19
PSRAM_PIN_MOSI=GP20
PSRAM_PIN_MISO=GP21
supported PSRAM ICs:
Espressif ESP-PSRAM64H
apmemory APS6404L
Lyontek LY68L6400
IPUS IPS6404
RP2350 has native psram support. PSRAM connection to the RP2350 differs from the connection to the RP2040. in the RP2350 case the MISO,MOSI and CLK lines are shared with onboard Flash IC but the CS line should be connected to GP19
The most commonly used ESP-PSRAM64H:
Graphical scheme for the assembly:
To simplify the assembly, a block layout of elements with soldering points for the cable has been developed
On the left capture is the top view from the RPi side
On the right capture is the bottom view from the soldering points
- microSD module
- PCM5102 i2s audio module
- PsRam module
Sample photo:
