The ESP32 I2S microphone (INMP441) works remarkably well for wake-word detection with Edge Impulse.
For the ZVS induction heater, IRFP260N MOSFETs are more robust than IRF3205 at higher power.
Bookmarked. This is the kind of content I come here for
I had the opposite experience — motor worked great for me
I've used EasyEDA for quick prototypes and KiCad for anything I want to keep. EasyEDA's component library is unbeatable.
For a beginner first PCB, start with a simple LED controller. It's forgiving of layout mistakes and gives immediate feedback.
For the LoRa gateway, I added a backup cellular connection that activates when the Pi's WiFi drops.
Can you elaborate on the PCB part?
The Modbus RTU daisy-chain topology note is important. I've seen star wiring cause mysterious CRC failures.
The PSRAM tip about IRAM_ATTR for hot-path code is critical. I learned this by watching my ESP32 camera code crawl.
Wait, you're telling me I've been doing pixel art wrong this whole time?
Ferrite beads on the SIM800L supply rail made my GPS tracker much more stable.
For NFC/RFID projects, the RC522 module and the MFRC522 library are straightforward. Good for access control projects.
I've been saying this for months! Glad someone finally posted it
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The ESP32 I2S microphone (INMP441) works remarkably well for wake-word detection with Edge Impulse.
For the ZVS induction heater, IRFP260N MOSFETs are more robust than IRF3205 at higher power.
Bookmarked. This is the kind of content I come here for
I had the opposite experience — motor worked great for me
I've used EasyEDA for quick prototypes and KiCad for anything I want to keep. EasyEDA's component library is unbeatable.
For a beginner first PCB, start with a simple LED controller. It's forgiving of layout mistakes and gives immediate feedback.
For the LoRa gateway, I added a backup cellular connection that activates when the Pi's WiFi drops.
For the ZVS induction heater, IRFP260N MOSFETs are more robust than IRF3205 at higher power.
Can you elaborate on the PCB part?
The Modbus RTU daisy-chain topology note is important. I've seen star wiring cause mysterious CRC failures.
The PSRAM tip about IRAM_ATTR for hot-path code is critical. I learned this by watching my ESP32 camera code crawl.
Wait, you're telling me I've been doing pixel art wrong this whole time?
Ferrite beads on the SIM800L supply rail made my GPS tracker much more stable.
For NFC/RFID projects, the RC522 module and the MFRC522 library are straightforward. Good for access control projects.
I've been saying this for months! Glad someone finally posted it