2 ms·
Yes, they made a microcontroller to compete with the ESP32, but the ESP32 has orders of magnitude more market share and ecosystem. Not to diminish what they acc
by margalabargala 2y ago
Yes, they made a microcontroller to compete with the ESP32, but the ESP32 has orders of magnitude more market share and ecosystem. Not to diminish what they accomplished with the RP2040; it's an impressive chip.
But as for whether they're chasing performance, the RP2040 isn't their flagship product. The Pi 5 is.
And I've had a Pi 5, under heavy CPU (not peripheral) load, start throwing undervoltage warnings when using a 5V3A power supply from a Pi 4.
- nsteel 2y agohttps://github.com/geerlingguy/sbc-reviews/issues/21 https://github.com/geerlingguy/sbc-reviews/issues/21 Power Idle power draw (at wall): 1.8 W (See note) Maximum simulated power draw (stress-ng --matrix 0): 9.7 W During Geekbench multicore benchmark: 7.9 W During top500 HPL benchmark: 11 W (2.75 Gflops/W)
- margalabargala 2y agoHuh. Maybe I had a bad power supply, then. Interesting. This is compellingly saying that I was too hasty in assuming the low voltage warnings were from the 18W supply topping out. Thank you for this.
- abswest 2y agoSeen same power warnings, when powered by RP4 5V/3A. Had to use 5.1V power supply to get rid of them.
- fostware 2y agoIt's been that way since the RP3 - heavy load resulting in rainbow square. Use the official power supply labelled 5.1v and the square disappears
- rerdavies 2y agoMaybe it's a spiky 9.7w. :-/
- lazide 2y agoA very real problem. Also power supply/chip tolerances and a little extra gunk on a pin somewhere can line up unfavorably. Personally, I had tons of power issues due to underspec cables with a Pi4. Irritating.