Choice between Arduino 33 BLE and 33 IoT

Projects General Guidance
1

Hello, I have found a closed post Power consumption: Nano 33 IoT vs 33 BLE which exactly describes my requirement. I need a board with only BLE communication and nothing else, no sensing functionality, I will just be reading pulses from a hall effect sensor, like a bicycle speedometer, and sending them over BLE by small batches (does not have to be realtime, the data can arrive a second or two late)

I am confused by the answer given on that post, because it says that the 33 BLE will use less power, but I am under the impression that the 33 IoT has a slower processor with smaller memory and thus it should be the other way around, the IoT should be the one using less energy. Can someone clarify?

Thank you!

2

Try their datasheet and compare.
One uses Wifi, one uses BT...

3

Hi, from what I see, both can do BLE. The difference is that IoT can also do wifi, but for the purpose of my question, both boards are BLE.

4

Any different circuitry on the boards will make a difference.
Again, use their datasheets to be sure.

5

Nano IoT has two MCU. SAMD and ESP32. ESP32 provides WiFi/BT/BLE . two MCU means higher consumption.

Nano BLE has only a nRF52 MCU with in-chip BLE (no classic Bluetooth)

6

Many thanks that's super clear! Nano 33 BLE for me then

7

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