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    • C

      Critical: L01 update to 1.8.0.b1 shrink the memory to same size as LoPY
      Firmware • lopy • • Colateral  

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    • A

      Lopy with pysense shield + deep sleep issues
      LoPy • lopy pysense deep sleep • • Andy12  

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      J

      @andy12 said in Lopy with pysense shield + deep sleep issues: wake_s = ds.get_wake_status() Hi, I have the same problem, maybe Did you resolve it?
    • cocoa

      LoPy unable to receive LoRaWan downlink message (ABP joined)
      LoPy • lopy lorawan error downlink abp • • cocoa  

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    • ledbelly2142

      LoPy Lora error correction
      LoPy • lopy lora error sending • • ledbelly2142  

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    • N

      Get Client Mac Address in GATTSService/Characteristic
      LoPy • lopy ble lopy ble • • neilh93  

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      ledbelly2142

      We created a service with multiple characteristics but could only see the first characteristic using BLE scanner.
    • S

      How to create a new project with the PyMakr plugin
      LoPy • lopy vscode project • • simonjcarr  

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      A

      To upload a whole project to the pycom board with Visual Studio Code, one has to the File > Open Folder command. Choose the folder where all your .py files are in, e.g., main.py, boot.py and so on. By opening the folder instead of a single file, the IDE and pymakr recognizes all files and interprets them as project. It took me ages to understand how this works... There are so many tutorials and guides around pycom, but there is not guide going through really ALL steps.
    • S

      How to set a specific IP Address in boot.py
      LoPy • lopy static ip • • simonjcarr  

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    • S

      LoPy FTP not working
      LoPy • lopy error ftp upload • • simonjcarr  

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      S

      @robert-hh Thank you, that did it (Setting the single connection only).
    • J

      3 Channel LoRaWan Nano Gateway
      Discussion • lopy lorawan rn2483 • • jamjam  

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      jmarcelino

      @jamjam In the last Kickstarter update they said end of Sept, but let's say 2 months.
    • J

      Lopy continues to restart and then stops !!!
      LoPy • lopy update reboot • • james  

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      J

      @jmarcelino , @robert-hh After the flash is deleted and the refresh seems to work with the latest release ... we hope well.. Thanks to everyone for help Regards
    • ledbelly2142

      LoPy LoRa Range Testing... Inside a running refrigerator
      LoPy • lopy lora nanogateway • • ledbelly2142  

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      S

      okmarts is happy to help you.
    • J

      Solar Lipo charger
      LoPy • lopy battery solar charger • • JimT  

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      robert-hh

      @JimT Sorry, I could have told you. You may use a 1N4001 model (or any of the 1N400x series). You have to put that in series to the solar module, Anode of the diode at the + pin of the solar module, Kathode (the side with the ring on the diode case) to the charger module's + input. Doing that, the voltage of the solar panel will be reduced by about 0.7 V. I would add a small load too behind the diode, to cap the no-load case, like by a 1 k resistor at the chargers module input between + and GND. You can use the additional power in lead pads of the charger module for that. I see that the module has already a built in diode, but that is a MPB120 Schottky type and reduces the Voltage only by 0.3 V.
    • ledbelly2142

      LoPy with Expansion board, How do you measure LiPo Battery up to 4.2V?
      LoPy • lopy battery battery powered battery monitor • • ledbelly2142  

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      ledbelly2142

      @jmarcelino Once again, thanks for the great feedback. I was looking for a simple way to alert when the battery needs to be recharged. Looks like some simple logic could be: if voltages gets to 3.3, alert for recharge... So many LiPo batteries have differing characteristics, even among the same model/make/capacity/manufacturer. I don't think there is real value is tracking a percentage... without extensive battery testing. Simplest thing to do is just report voltage. From the example from HERE do you recommend using the following: numADCreadings = const(100) def ADCloopMeanStdDev(): adc = machine.ADC(0) adcread = adc.channel(attn=1, pin='P16') samplesADC = [0.0]*numADCreadings; meanADC = 0.0 i = 0 while (i < numADCreadings): adcint = adcread() samplesADC[i] = adcint meanADC += adcint i += 1 meanADC /= numADCreadings varianceADC = 0.0 for adcint in samplesADC: varianceADC += (adcint - meanADC)**2 varianceADC /= (numADCreadings - 1) print("%u ADC readings :\n%s" %(numADCreadings, str(samplesADC))) print("Mean of ADC readings (0-1023) = %15.13f" % meanADC) print("Mean of ADC readings (0-1400 mV) = %15.13f" % (meanADC*1400/1024)) print("Variance of ADC readings = %15.13f" % varianceADC) print("10**6*Variance/(Mean**2) of ADC readings = %15.13f" % ((varianceADC*10**6)//(meanADC**2))) print("ADC reading for Voltage (0-1400 mV) = %15.4f" % (meanADC*1400/1024)) From the ACD pin 16 voltage, the voltage is the meanACD*1400/1024 Does not seem right, the output is 4966.3634.
    • N

      Sending Files from LoPy to Android device (e.g. Phone) via Bluetooth
      LoPy • lopy ble bluetooth lopy ble • • neilh93  

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    • cocoa

      LoPy with 3.3V direct powering fails to start.
      LoPy • lopy power issues 3v3 fault • • cocoa  

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      jmarcelino

      @jcaron Isn't this the opposite of what what stated here: Not completely the opposite, it's still more efficient to use a regulated 3.3V supply (low voltage forces the onboard regulator into bypass ECO mode) But it needs to be updated to reflect that 3.3V should be applied to the 5V/VIN pin. Is the Pysense/Pytrack sending power to the module via 5V Yes, all the various shields implementing deep sleep control the *py board's 5V rail
    • D

      Lopy stop after some time
      LoPy • lopy logs stoped • • dreifs  

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    • E

      Firmware download link
      Firmware • lopy wipy • • EasyRider  

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      E

      Thanks jmarcelino, 1.7.4.b1 works.
    • S

      LoPy - USB - Pymakr getting started
      LoPy • lopy pymakr atom usb serial conn • • shmaugust  

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      S

      OP Here I also uninstalled atom and pymakr a couple of times. I also uninstalled pymakr a third time and installed using apm install and that did not work.
    • cocoa

      LoPy pcb female connector
      Getting Started • lopy hardware pcb connectors • • cocoa  

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      cocoa

      @tcb Thank you!
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