EPISODE · Sep 11, 2022 · 24 MIN
Desk of Ladyada - Samples Sunday & Replacement SPI FRAM
from Adafruit Industries · host Adafruit Industries
We got a whole mess of interesting mechanical samples - from fancy-pants breadboards to encoders and joysticks. We're also doing a lil bit of refactoring of hardware designs, since it was time to re-order 1.8" TFT breakout PCBs we decided to give up a glow-up to add an EYESPI port. Also we've started the tester for the ESP32 ItsyBitsy. The Great Search - Replacement SPI FRAM https://www.digikey.com/short/pndr7mr8 We think FRAM chips are the most underrated storage chips engineers can use - they're excellent for datalogging! They also solve the biggest frustration when people try to stream data to EEPROM, SD card or Flash memory: erase times for blocks can stretch to hundreds of milliseconds, and you often need to write a whole block at a time. SRAM is nice but will erase itself when power is lost. If you need to burst-write data to a reliable storage medium that is OK with having power cut - FRAM is great. We have a few FRAM breakouts (https://www.adafruit.com/?q=fram&sort=BestMatch) but we've found some chips are discontinued/obsolete (https://www.digikey.com/short/wc94tmd2) - lets see what options we have for replacements - a good lesson in how to read and understand PCNs Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #deskofladyada #thegreatsearch #adafruit
What this episode covers
We got a whole mess of interesting mechanical samples - from fancy-pants breadboards to encoders and joysticks. We're also doing a lil bit of refactoring of hardware designs, since it was time to re-order 1.8" TFT breakout PCBs we decided to give up a glow-up to add an EYESPI port. Also we've started the tester for the ESP32 ItsyBitsy. The Great Search - Replacement SPI FRAM https://www.digikey.com/short/pndr7mr8 We think FRAM chips are the most underrated storage chips engineers can use - they're excellent for datalogging! They also solve the biggest frustration when people try to stream data to EEPROM, SD card or Flash memory: erase times for blocks can stretch to hundreds of milliseconds, and you often need to write a whole block at a time. SRAM is nice but will erase itself when power is lost. If you need to burst-write data to a reliable storage medium that is OK with having power cut - FRAM is great. We have a few FRAM breakouts (https://www.adafruit.com/?q=fram&sort=BestMatch) but we've found some chips are discontinued/obsolete (https://www.digikey.com/short/wc94tmd2) - lets see what options we have for replacements - a good lesson in how to read and understand PCNs Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #deskofladyada #thegreatsearch #adafruit
NOW PLAYING
Desk of Ladyada - Samples Sunday & Replacement SPI FRAM
No transcript for this episode yet
Similar Episodes
Apr 21, 2026 ·73m
Apr 18, 2026 ·14m
Apr 18, 2026 ·95m
Apr 15, 2026 ·55m
Apr 13, 2026 ·68m
Apr 11, 2026 ·59m