23 May
2023
23 May
'23
10:38 p.m.
On 5/23/23 14:10, geneb wrote:
Yep - Teensy 3.5 boards are basically unobtainium at
this point - the
designer is working towards an update that will use the Teensy 4.x
The 4.x doesn't have 5V tolerant GPIO, which means that he'll need
level-shifters.
I note that STM32H7750vbt6 ARM7 dev boards are about 20 bucks on
Aliexpress. 450Mhz, 1MB SRAM, 128KB of program flash and just about any
peripheral you can think of--and a few you didn't. 5V tolerant GPIO,
BTW. Vendor throws in a MicroSD socket and 8MB of QSPI RAM. USB C connector.
Seems to be popular with the videocam crowd.
ARM Silicon just gets better and better. I wonder if RISC-V will
eventually overtake ARM.
--Chuck