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No. All you would need is a SPI interface or whatever the Lora module speaks. The most basic microcontroller can do that. Any ESP32 is overkill for this.
by obitsten 1y ago
No. All you would need is a SPI interface or whatever the Lora module speaks. The most basic microcontroller can do that. Any ESP32 is overkill for this.
- winrid 1y agoRight. Sorry I meant development boards. This is low volume, probably will only make a few a year. The nice thing about the esp32 is I can get the board with lora/display built in, with a battery, for $25 each. The stm32 board and module is only a tiny bit less, for example. If I wanted to I could do this with a cheap 8bit microcontroller, I would just have to design a custom board with an oscillator to modulate the IR LEDs etc. I was gonna do that with PWM from the microcontroller to "simplify" things. Edit: oh the MSP430 is neat! If I cared about battery life (driving 200ma of LEDs anyway...) I'd totally use that.
- winrid 1y agoThe XIAO RP2040 looks perfect for what I'm doing, actually, and draws less power.