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    cabat

    @cabat

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    Best posts made by cabat

    • RE: MYSBootloader 1.3.0-beta.3

      @iguaan Try to set MY_RF24_PA_LEVEL to RF24_PA_MIN on gateway then use NRF24L01+PA+LNA module - in my case the OTA begin work perfect!

      posted in Development
      cabat
      cabat
    • RE: OTA not working in my current setup (CRC Error)

      May be it's help you - in my case with Winbond W25X40CL changing code in SPIFlash.h solve the problem with CRC error:

      i change this:

      #define SPIFLASH_BLOCKERASE_32K   0x52        //!< erase one 32K block of flash memory
      

      on this:

      #define SPIFLASH_BLOCKERASE_32K   0xD8        //!< erase one 64K block of flash memory
      
      posted in Troubleshooting
      cabat
      cabat
    • RE: Newbie wants to do everything wired

      @feanor-anglin said in Newbie wants to do everything wired:

      If you like it, please feel free to contact me. We've made some significant progress, which is not published yet.

      I am also intresting in implementation of RS485 in my MySensors network, and i like yor hardware and use some of your ideas in my project Simple compact RS485 node (ATmega328 + MAX485) ,

      posted in General Discussion
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      You can use anything like this:

      27b273ad-810b-4880-baf8-09ad8ba67e41-изображение.png

      https://electronics.stackexchange.com/questions/129463/switch-on-computer-with-microcontroller

      i am using just one PC817:

      94af73aa-76db-4a35-97c2-9dc3f82fa00b-изображение.png

      posted in Development
      cabat
      cabat
    • RE: 💬 Simple compact RF24 node (ATmega328 + NRF24)

      @yveaux Sorry, i don't test the range of nodes - plan to use in the 2 floor house of 60 meters.
      But you opinion is correct, this design is compromise of size, pins count and range degradate.
      This is prototype, work good about 1 year:

      0_1532697756848_node_3.jpeg
      0_1532697764522_node_4.jpeg

      posted in OpenHardware.io
      cabat
      cabat
    • RE: Powering NRF24l01+ with DC-DC Module Abaisseur Regulateur Tension Step Down

      As i see, two first module is impulse, but third - linear?

      posted in Troubleshooting
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel Great work! 🙂

      1. 5V connected through diode to protect of polarity revers
      2. MB = Motherboard, you right
      3. First need to connect power button from front panel, second to connect to "Power Switch" on motherboard. This allows power on both from power button and Arduino.

      You disign is absolutely working!

      posted in Development
      cabat
      cabat
    • RE: Supply 230V/5V for node ? Mini Pro, NRF24L01, ams1117

      Very dangerous - too small gap between AC230 and GND:

      15073096-6a58-44fa-9674-50a623989f5f-изображение.png

      posted in Troubleshooting
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel Sorry friend, I guess I confused you a little ..
      The diode is needed so that, when powered from the contacts on the motherboard with 5V, it does not damage my arduino, that's all 🙂
      Have a nice weekend to!

      posted in Development
      cabat
      cabat

    Latest posts made by cabat

    • Specific register setting fo NRF24 with PA-LNA

      It has long been known, that the NRF24 module with PA-LNA work strangely, if the RF24_PA_LEVEL parameter has not the RF24_PA_LOW value.

      I decided to study the issue a little and found such a parameter in the registers of the NRF24 chip settings - "LNA gain":

      "6.5 LNA gain
      The gain in the Low Noise Amplifier (LNA) in the nRF24L01 receiver is controlled by the LNA gain setting. The LNA gain makes it possible to reduce the current consumption in RX mode with 0.8mA at the cost of 1.5dB reduction in receiver sensitivity.The LNA gain has two steps and is set by the LNA_HCURR bit in the RF_SETUP register."

      (see nRF24L01 Single Chip 2.4GHz TransceiverProduct Specification)

      I see this setting in RF24registers.h:

      #define RF24_LNA_HCURR		(0)
      

      May be here I may use "1" for module with PA-LNA?

      #define RF24_LNA_HCURR		(1)
      
      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel Yes, you rigth - between 3.3V on mainboard and VCC of arduino!

      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel Sorry friend, I guess I confused you a little ..
      The diode is needed so that, when powered from the contacts on the motherboard with 5V, it does not damage my arduino, that's all 🙂
      Have a nice weekend to!

      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel See for example this for understand the idea:
      https://www.allaboutcircuits.com/technical-articles/how-to-protect-your-circuits-using-only-a-diode/

      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel I don't undestand - why you want to use diode between 3.3V and GND?
      About resistor on the mainboard side - i don't use it and all works fine 🙂

      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      @kiesel Great work! 🙂

      1. 5V connected through diode to protect of polarity revers
      2. MB = Motherboard, you right
      3. First need to connect power button from front panel, second to connect to "Power Switch" on motherboard. This allows power on both from power button and Arduino.

      You disign is absolutely working!

      posted in Development
      cabat
      cabat
    • RE: Starting my PC with a 3.3v arduino pro mini?

      You can use anything like this:

      27b273ad-810b-4880-baf8-09ad8ba67e41-изображение.png

      https://electronics.stackexchange.com/questions/129463/switch-on-computer-with-microcontroller

      i am using just one PC817:

      94af73aa-76db-4a35-97c2-9dc3f82fa00b-изображение.png

      posted in Development
      cabat
      cabat
    • RE: Corrupted data from RS485 Sensor Node

      What about RS485 bus topology and connection to RS485 recievers on Arduino Pro Mini module?

      posted in Bug Reports
      cabat
      cabat
    • RE: Supply 230V/5V for node ? Mini Pro, NRF24L01, ams1117

      @skywatch Don't worry - in my case it doesn't matter, because the plug can be inserted into the socket on both sides 🙂

      posted in Troubleshooting
      cabat
      cabat
    • RE: Supply 230V/5V for node ? Mini Pro, NRF24L01, ams1117

      I am using the same power supply in one of my device (dimmer for aqua LED lamp)- it work good..

      auua_dimmer.jpg

      posted in Troubleshooting
      cabat
      cabat