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  2. kowshik1729
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Topics created by kowshik1729

  • kowshik1729

    Having problem burning bootloader to custom Atmega328p board
    General Discussion • 7 May 2021, 15:49 • kowshik1729 9 May 2021, 11:35

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    kowshik1729 9 May 2021, 11:35

    @salmanfaris I am using Arduino UNO as ISP programmer.(General ISP connections are made). I used both Arduino IDE and also avrdude command line to burn the bootloader. I am sharing link to pictures and debug outputs I got on both avrdude and arduino here. Please check it and let me know if it rings any bells for you.

    https://drive.google.com/drive/folders/1BP74HvmbBOlqBN4XDcvLkMt7eNK5hWaL?usp=sharing

  • kowshik1729

    Silkscreen with Photos
    PCB Designing • 28 Nov 2020, 11:56 • kowshik1729 28 Nov 2020, 11:56

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  • kowshik1729

    Custom board for running ML models
    PCB Designing • 11 Oct 2020, 09:00 • kowshik1729 12 Oct 2020, 10:23

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    salmanfaris 12 Oct 2020, 10:23

    @kowshik1729 I think that might not get since the platform is not opensource! but they provided everything you need to develop a system with that.

  • kowshik1729

    BT and WiFi Dual Core simultaneous operation using ESP32?
    ESP32 • 31 Jul 2020, 09:01 • kowshik1729 29 Aug 2020, 08:52

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    salmanfaris 29 Aug 2020, 08:52

    @kowshik1729 If you are using an external high-speed switch, there is only one one clock generator for both wifi and BLE and the high-speed switch you mentioned is Ultra-Wideband (UWB) 3–8 GHz from its datasheet

    b2da6871-9110-40f1-8ff0-d8313547a17a-image.png

    you also check this solution that I shared in the previous post.

    @salmanfaris said in BT and WiFi Dual Core simultaneous operation using ESP32?:

    There is a special option called “Software controls WiFi/ Bluetooth coexistence” it can control the ESP32's Bluetooth and Wi-Fi coexistence using software, more details: https://www.espressif.com/sites/default/files/documentation/ESP32_FAQs__EN.pdf

  • kowshik1729

    Suggestion with DC Power jacks
    General Discussion • 21 Jul 2020, 10:02 • kowshik1729 25 Jul 2020, 13:38

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    salmanfaris 25 Jul 2020, 13:38

    @kowshik1729 Then go with a standard barrel jack, it can handle 6A.

  • kowshik1729

    HID Mouse Emulation using ESP32
    ESP32 • 18 Jun 2020, 13:01 • kowshik1729 20 Jun 2020, 07:09

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    salmanfaris 20 Jun 2020, 07:09

    @kowshik1729 Then I think it will be difficult, here on this video https://www.youtube.com/watch?v=po3FBdY0GS4 , bitluni's lab used CH559 USB Host controller in order to use the USB HID Services.

    Another possibility is Port V-SUB to ESP32, V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR microcontrollers

    I found some Github repo's that contain BLE HID

    https://github.com/asterics/esp32_mouse_keyboard

    https://github.com/I0x0I/DIY-A-BLE-Keyboard

  • kowshik1729

    CP2104-F03-GMR device descriptor request failed
    General Discussion • 10 Jun 2020, 09:46 • kowshik1729 14 Jun 2020, 15:38

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    kowshik1729 14 Jun 2020, 15:38

    Not yet @salmanfaris .

  • kowshik1729

    SMD Connectors for Inter board connections
    General Discussion • 28 May 2020, 08:54 • kowshik1729 29 May 2020, 08:50

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    salmanfaris 29 May 2020, 08:50

    @kowshik1729 The Sparkfun Qwiic Connector Libray can be found in the Sparkfun Eagle library under SparkFun-Connectors.lbr->Qwiic Connector.

  • kowshik1729

    Need Chlorine level sensor
    General Discussion • 25 May 2020, 07:02 • kowshik1729 26 May 2020, 05:41

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    salmanfaris 26 May 2020, 05:41

    @kowshik1729 You can find the sensor Operating Instructions here. since it's an industrial one, Arduino instruction will not available out of the box! but we can contact the manufacture regarding the communication protocols to write driver/ interfacing programme fo this.

  • kowshik1729

    Need Help: ESP32 PICO Antenna Design
    PCB Designing • 2 May 2020, 23:47 • kowshik1729 8 May 2020, 11:38

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    kowshik1729 8 May 2020, 11:38

    @naveenDesign Me and @Suhailjr are still working on the designing part. Please put up your thoughts if any, we are glad to know. 😊

Recent Posts

  • @Neha-Kamal Nice one, Can you share the project link also here. Thanks 🙌.

    26 days ago • read more
  • A

    Solution Architecture
    Module Selection: Miniature surface-mount PIR modules (e.g., HC-SR501) with size <20mm×20mm for integration into embedded lighting (ceiling lights, corridor lamps).
    Linkage Logic: Connect to MCUs (e.g., ESP32) via GPIO for "person detected - full brightness; person present - dimmed; person leaves - 30s delay off" control. Integrate light sensors (e.g., BH1750) for daytime auto-shutdown.
    Energy Savings: Reduces lighting energy consumption by 30%-50% compared to traditional switches, ideal for corridors and bathrooms.

    Typical Scenarios Smart Homes: Integrates with Alexa/Mijia systems, allowing APP-adjustable sensing distance and delays. Commercial Lighting: Mall corridors use zoned sensing via RS485 bus for collaborative multi-module control.

    III. Optimization of Sensing Solutions for Security Systems

    Enhanced Intrusion Detection Design Anti-Interference Technology: Dual-element complementary sensors suppress ambient temperature interference; pulse counting (2 consecutive pulses trigger alarm) reduces false positives. Multi-Dimensional Linkage: Combines with microwave radar modules (e.g., HB100) for "infrared + microwave" dual detection, triggering alarms only when both activate to avoid curtain sway or insect interference. Concealed Installation: Modules with integrated lens-housing designs (e.g., RE200B) hide within ceilings or decor for covert security. Data Transmission and Response Wireless Transmission: LoRa modules (e.g., EBYTE E32-433T30D) enable low-power long-range (3km open area) data upload, suitable for villa/factory perimeter security. Rapid Response: <0.5s trigger delay, with local buzzer alerts and cloud notifications (via NB-IoT) within <3s.

    IV. Selection and Deployment Considerations

    Environmental Adaptation Avoid direct exposure to air vents/heating sources. Install at 2.2-2.8m (indoor) or 3-5m (outdoor) height, tilted 15°-30° to cover human activity zones. Outdoor use requires IP65 waterproof modules (e.g., AM312-IP67) with sunshades to minimize solar interference. Cost-Reliability Balance Consumer scenarios: HC-SR501 (~$2/unit); industrial use: Prioritize stability (e.g., Panasonic EKMC1603111, temp drift <±2%/℃). Batch deployment: Reserve 10% redundant modules with self-diagnostic voltage checks for fault

    28 days ago • read more
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