These things are dirt cheap, im thinking of starting a few projects with them
https://www.waveshare.com/rp2040-pizero.htm
Cheap little computer
Re: Cheap little computer
Ah, like a Pico but in a Pi Zero form factor (with 40 pin header)
Re: Cheap little computer
The DVI port is interesting, wonder if it has the power to substitute the Zero in the RGBtoHDMI? Would need a big rewrite tho I imagine...
Re: Cheap little computer
I think all the RP2040 DVI solutions involve overclocking the microcontroller, although it doesn't stop vendors selling boards for such purposes. See, for example, adafruit / PicoDVI.
Re: Cheap little computer
Yes, this is one of those sad situations where someone does a hack project just to show it can be done, then loads of people copy it thinking that's the right way to do it.
There are projects around with a proper driver chip behind the HDMI (and which don't necessarily require overclocking), but it doesn't look like this is one of them.
There are projects around with a proper driver chip behind the HDMI (and which don't necessarily require overclocking), but it doesn't look like this is one of them.
Re: Cheap little computer
im not sure if this is overclocked ? looking at the specs on the page shows cpu clock up to 133MHz and on-board DVI interface ?
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Board specifications
RP2040-PiZero is a high-performance and cost-effective microcontroller board designed by Waveshare, onboard DVI interface, TF card slot and PIO-USB port, compatible with Raspberry Pi 40PIN GPIO header, easy to develop and integrate into the products.
RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz
264KB of SRAM, and 16MB of onboard Flash memory
Onboard DVI interface can drive most HDMI screens (DVI compatibility required)
Supports using as a USB host or slave via onboard PIO-USB port
Onboard TF card slot for reading and writing TF card
Onboard Lithium battery recharge/discharge header, suitable for mobile scenarios
USB 1.1 with device and host support
Drag-and-drop programming using mass storage over USB
Low-power sleep and dormant modes
2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels
Accurate clock and timer on-chip
Temperature sensor
Accelerated floating-point libraries on-chip
8 × Programmable I/O (PIO) state machines for custom peripheral support
Re: Cheap little computer
@arg I think you are right it is probably overclocked, I've been looking at the PCB and cannot see any dedicated video driver chip
Re: Cheap little computer
Looks like it has the wrong video output for kilog's b-em for Raspberry Pi Pico/RP2040