Electrodragon NRF Pro Mini Sensor Board
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I am considering ordering several of these for new and future sensors. I thought I saw this board supported by myscontroller bootloader in 13pre or the github dev branch but cant seem to find it at the moment.
Has anyone tried this FOTA?
--Reichard
@xreichardx I have not tried the myscontroller bootloader, sorry.
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I received my order of these nrf24duinos and loaded up a Nodemanger BME280 sketch. Currently running on a battery and waking up every 10 minutes.
I installed the spiflash.h library, added the "SPIFlash flash(8);" but flash.powerDown(); throws the an error during compilation "class SPIFlash has no member named 'powerDown".
I opened the spiflash.h library and no powerDown defined. I did see sleep() though.
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Interesting. I might be using a different library. I would stick with the LowPowerLab version, looks like sleep is equivalent to power down.
#define SPIFLASH_SLEEP 0xB9 // deep power downhttps://github.com/LowPowerLab/SPIFlash/blob/master/SPIFlash.h line 82
I guess I'm using this library, https://github.com/Marzogh/SPIMemory. It was renamed to SPIMemory.
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Thanks, I'll check out that library as well.
After four days of operating on a 18650 battery, the battery voltage hasn't dropped from full charge voltage of 4.12v. I was quite pleased with the nrf24 range of these ElectroDragon boards as well.
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@sergio-ramos Did you have an issue with one? I have purchased many of them and have not had one problem.
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@sergio-ramos Did you have an issue with one? I have purchased many of them and have not had one problem.
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@xreichardx that user was fake, copying a question from earlier in this thread and later editing the post to contain spam links.
@mfalkvidd Thanks for doing this kind of work (deleting fake users and stopping spam). I am sure it is not as much fun as answering real questions about MySensors topics. But I learn so much from people in these forums, that I would hate to see it overtaken by trolls and spam.
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And Electrodragon also offers a Mini Boost Buck DC Board 1.8-5V to 3.3V, for Battery Juice R2:
http://www.electrodragon.com/product/mini-boost-buck-dc-board-1-8-5v-3-3v/
Use full battery juice!
• Super mini size 11.5×9.5mm, SOT23-6 IC with only three caps
• Input Voltag 1.8-5V, output 3.3V up to 150mA
• Constant Frequency Operation at All Loads. Low Noise Constant Frequency (1.2MHz)
Operation
• Automatic Soft-Start Reduces Inrush Current
• Shutdown Current <1 uA, No load current is 1.77mA.
• Short-Circuit Protection
• No Inductors
• Standard 2.54 pin output, 3.3V-GND-VIN (face to top), can be used as a normal SMD part.
Testing for reference:
• 1.8V VIN -> 3.3V output
• 1.5V VIN -> 3.1xV output, still can drive a lot MCUs.Updated to R2:
@patt896 I have the same setting: the "Atmega328P Arduino Plus Nrf24l01+ Board, Nrf24Duino R1.6" and the "Mini Boost Buck DC Board".
But I can't get this to a current lower than 3 mA while sleeping.
This is to much for me, because I want it to be powered with 5 volt solar module in combination with a supercap.
Can You give me a hint, what to do, to reduce the power consumption? -
@patt896 I have the same setting: the "Atmega328P Arduino Plus Nrf24l01+ Board, Nrf24Duino R1.6" and the "Mini Boost Buck DC Board".
But I can't get this to a current lower than 3 mA while sleeping.
This is to much for me, because I want it to be powered with 5 volt solar module in combination with a supercap.
Can You give me a hint, what to do, to reduce the power consumption?@rpunkt if 3ma is your current draw while sleeping, you will quickly drain any battery or supercap. The "mini boost buck dc board" itself has a no-load current of 1.77mA.
Might look here for low-power libraries and design considerations:
