low cost/low speed/low consumption teensy ?

T

tochinet

Member
Hi all,
I made some use of Teensy 3.0 long ago, and I'd like to know if there is anyone here sharing the need for lower performance teensys. No doubt Teensy 4.1 is great, but it is so big and rather high-end. I know the chips used in teensy 3 were short of supply, but isn't there any replacement ? Or no interest ? I moved to ESP32 in the meantime, but teensy (3) were definitely a better choice.
Thanks for feedback,
Christophe.
 
Have you looked at Arduino Nano R4? Costs about $12, similar in size to T3.2, Cortex M4F at 48 MHz, 256K flash, 32K RAM, 14-bit ADC, 12-bit DAC, 8K EEPROM. It runs on 5V and the GPIO are 5V tolerant, which I imagine would help with existing T3.0/3.1/3.2 designs.
 
For low power acoustic data acquisition I use Adalogger RP2040 (Unfortunately the RP2350 that was said to be ready last April, did not show up in Adafruit's shop). One trick to reduce power is to use SPI and not SDIO to write to microSD and to write maximal buffer. This way the SD card could switch off internally between the writing.
 
You must log in or register to reply here.
Back
Top