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I doubt that you can even compile it at the first place.
The idle function call doesn’t exist for SAMD21 core. It is only available for the AVR variant.Reflow Oven Build by Keith. Excellent and detailed wiring diagram by Keith!
Uses the Tiny Reflow Controller.
Note: The oven’s original temperature controller and timer have been removed and the heating elements wired directly across the incoming Active and Neutral. The elements were already series connected as two pairs, top and bottom.
Those pins are not broken out but existed on the ATSAMD21G18A MCU.
Please see the code properly because used pins are later configured as accordingly.
Hi Ferdi,
On Arduino IDE, using a known simple sketch like blink, after pressing upload, double press the reset button twice in quick succession. That will put the board into bootloading mode.Hi Manuel,
The red LED for charging indication cannot be controlled as it is controlled by the charger IC BQ24074.Does the green LED turns on when 5V VIN is connected? If yes, with battery connected it should be charging with the red LED turn on too until battery is completed it’s charging process.
Hi Manuel,
The connector has clear polarity marking on the PCB. And also these are usual polarity you will find in most battery available out there with a JST PH 2.0 mm connector. If there’s no smoke, high heat on the battery or battery charger chip, it could still possible to be still not damaged.
It is possible that your battery pack if it has a built-in protection, it will cut off the power (hence zero volts). If not, it possible it is damaged.
Is the board still detectable by the PC?
Try with another battery to see whether it’s a faulty battery.Can you connect the USB to a serial terminal and log the messages? It’s very hard if not impossible to track down at which point it “hangs” without having these information.
Please post your code here so we can take a look at it. We have been writing firmware for custom works, and the board does work as expected and some already out in the field for more than a year.
Hi Dmytro,
Do you think about changing the MCP1700 (Mini Ultra Pro V3 board) on Buck-Boost regulator e.g TPS63051.
I believe it will be more efficient for using a LiPo. These batteries have a voltage that goes from 4.2V to 2.7V typically during their discharge cycle.It’s in the work. But I can’t reveal much yet! It’s going to awesome, awesome for everyone’s need.
And, if I understand, Mini Ultra Pro V3 board would not work if the voltage goes lower than 3.3 v (e.g. 3V).
Yes, it won’t unfortunately.
I think Wire.begin() is needed because if you look at the Wire library for SAMD21 core:
void TwoWire::begin(void) { //Master Mode sercom->initMasterWIRE(TWI_CLOCK); sercom->enableWIRE(); pinPeripheral(_uc_pinSDA, g_APinDescription[_uc_pinSDA].ulPinType); pinPeripheral(_uc_pinSCL, g_APinDescription[_uc_pinSCL].ulPinType); }Do you have any alternative to use multiple I2Cs on the same address that is verified with the v3?
Unfortunately no for now.
Also how is the backorder lead time on the v3 at this moment?
Usually 1-2 days after order. Time is tight now due to parenting task at day time. I have just gotten a pick and place machine but haven’t set it up yet. Things will improve once it’s up and running.
Do I have to remove the battery every time I plug in the USB to prevent charging the battery?
Unfortunately yes for now. I’m working on a version for non-rechargeable version due to many request for it.
