I have RAK9007 and RAK4631. With simple code which blink LED for 30 seconds consume 10mA and then go to deepsleep. but still it is consuming 3-5mA. why?
one more question is can we control this IO2 using software API.
Do you initialize the LoRa transceiver and force it to sleep mode?
If not, the transceiver will be in stand by mode, which uses a higher current.
lora_rak4630_init();
Radio.Sleep();
Now I used that and I’m seeing little difference around 2mA reduced and still it consuming more than expected around 3-5mA without any tasks running.
I’m using semaphores and timers for task synchronization. and even the RAK5860 is powered off. and no BLE adv or scan.
Hi @RaviKM,
Regarding power consumption I was confused too, until I found my issue with supply voltage. I Must be higher than ~3.6V, see - Where is the leakage? [RAK19007] - #17 by beegee
I’m using regulated power supply and giving 4.5V. and using semaphores and callbacks as per example DeepSleep-nRF52.zip. I’m using Lora so I disable it as beege suggestion. Fully confused and don’t know where I’m doing misake.
I would strip down my code and test step by step.
Start with a simple LoRaWAN connect and send empty packets, measure consumption.
Then add one by one the different parts/tasks and measure after each single item was added.
@RaviKM OK, but how do you feed and measure it?
But as @beegee says, its good to have a working reference for you hardware setup.
I have connected RAK5860 module in IO Slot 2 but I’m not powering it up.
I stripped LoraWAN code added one LED blink code with Timer and semaphore synchronization. I’m getting 5mA during Idle condition.
Hardware setup to measure current : Since I do not have PPK2, I’m using Digital multimeter to read current and RAK is powered through Regulated power supply with 5V input.