• New product: Raspberry Pi Zero 2 W on sale now at $15 / ₹ 1250.

    alt text

    Raspberry Pi Zero 2 W uses the same Broadcom BCM2710A1 SoC die as the launch version of Raspberry Pi 3, with Arm cores slightly down-clocked to 1GHz, bundled into a single space-saving package alongside 512MB of LPDDR2 SDRAM.

    Here are the highlights:

    • Broadcom BCM2710A1, quad-core 64-bit SoC (Arm Cortex-A53 @ 1GHz)
    • 512MB LPDDR2 SDRAM
    • 2.4GHz IEEE 802.11b/g/n wireless LAN, * Bluetooth 4.2, BLE
    • 1 × USB 2.0 interface with OTG
    • HAT-compatible 40 pin I/O header footprint
    • MicroSD card slot
    • Mini HDMI port
    • Composite video and reset pin solder points
    • CSI-2 camera connector
    • H.264, MPEG-4 decode (1080p30); H.264 encode (1080p30)
    • OpenGL ES 1.1, 2.0 graphics

    src: https://www.raspberrypi.com/news/new-raspberry-pi-zero-2-w-2/

    posted in Raspberry Pi
  • RE: ESP8266 Restart while running ISR. [ESP8266 FreeRTOS SDK]

    Thanks for sharing @rafitc99 . Glad to know that it was solved.

    posted in General Discussion
  • RE: ESP8266 Restart while running ISR. [ESP8266 FreeRTOS SDK]
    BaseType_t xQueueSendFromISR
               (
                   QueueHandle_t xQueue,
                   const void *pvItemToQueue,
                   BaseType_t *pxHigherPriorityTaskWoken
               );
    

    I was trying to pass a pointer. That was the issue.
    Reference

    posted in General Discussion
  • RE: ESP8266 Restart while running ISR. [ESP8266 FreeRTOS SDK]

    Update!!
    I found the issue
    I created a Queue inside Rgpio.cpp and called a Funciton from main.cpp to check data in Queue. That worked well!!

    Reference to the #commit .

    posted in General Discussion
  • ESP8266 Restart while running ISR. [ESP8266 FreeRTOS SDK]

    I'm trying to pass a value into Queue from Interrupt Service Routine(ISR) using xQueueSendFromISR() <-- Reference

    But I'm getting this error and ESP restart immediately.

    Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.
    Core 0 register dump:
    PC      : 0x4021227c  PS      : 0x00000033  A0      : 0x4021c72e  A1      : 0x3ffe8220
    

    Here is the gpio interrupt example which I'm following.

    Here is my code. I did some modification in this.

    Check 70th line of this location.

    static void main_power_isr_handler(void* arg)
    {
        xQueueHandle* main_q = (xQueueHandle*)arg;
        static main_q_payload_t msg;
        msg.hdr = E_MAIN_MSG_MAIN_POWER_STATUS;
        msg.bool_payload = gpio_get_level(GPIO_MAIN_POWER);
        //ets_printf("Someone Interrupted \n ");
        xQueueSendFromISR(main_q, &msg, NULL); //!!! THIS LINE
    }
    
    posted in General Discussion
  • MakerGram Live | September 2021 Maker Update 📡 | Thread 🧵

    📚 Updates

    🔥 MakerGram won T-works Everything Electronics Quiz 3 .

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    ✨ Opportunities

    CIRCUITSTATE Maker Incentive Programme 2021 : Maker Incentive Programme 2021 is CIRCUITSTATE's initiative to expand the open knowledge base by financially supporting individuals passionate about electronics and computer programming. more information

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    Disruptive Technologies IoT Sensor Starter Kit Award
    Wevolver, in partnership with Disruptive Technologies, is awarding IoT hardware and infrastructure to support engineers in the development of the next generation of smart building systems. More Information

    0df38b1d-a00c-4c1b-8e9e-3ff121eb4dbb-image.png

    Adaptive Computing Challenge 2021 with Xilinx : Combine the power of Xilinx adaptive computing platforms with Vivado® ML, Vitis™ unified software platform, and Vitis AI development environment to solve real-world problems! more information

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    ✨ "Useless" design competition : ALLPCB is holding a "Useless" design competition to encourage innovation and all kinds of creativity. Here, we help you make your ideas come true as long as it is interesting. Come and start a "Useless" design with ALLPCB and you may bring $1000+ home! more information

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    Kerala Startup Innovation Drive 2021: Govt. of Kerala has introduced the Innovation Grant scheme to provide financial assistance to startups, entrepreneurs and startups to help them convert their innovative ideas into full-fledged ventures. More information

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    🚀 Projects

    ** Jetson nano ROS based Robotic Project by @zainmuhammed**

    WhatsApp Image 2021-10-02 at 12.02.15 PM.jpeg

    Speech Recognition using Wio Terminal & Code Craft + Edge Impulse. A simple voice recognition project using code craft graphical programming, wio terminal and edge Impulse. Read here

    a29266d7-603f-496c-afb7-48f2a218647b-image.png

    posted in News
  • RE: 2-Days Raspberry Pi Beginners Workshop - 2021 🧵 (മലയാളം)

    Raspberry Pi Flavours !

    Introduction to Raspberry Pi Day 1 (Blue).jpg

    Share, Which model you used and why you chosen it?

    posted in Events & Hackathons
  • 2-Days Raspberry Pi Beginners Workshop - 2021 🧵 (മലയാളം)

    397e7ecb-d4c4-412d-9b67-3f6b47d40421-image.png

    Are you Interested to Build Electronics Projects?

    • Learn how to use setup raspberry pi 💻
    • Learn how to use raspberry pi GPIO 📍
    • Learn how to use the NodeRED platform ✨
    • Learn how to work with Linux command Line at a basic level 👩‍💻

    Join 2-Days Raspberry Pi Beginners Workshop on 28 and 29 August 2021.

    Day 1

    • Introduction to Raspberry Pi Computer
    • Setting up Raspberry Pi H/W and OS
    • Raspberry Pi OS Tour
    • Explore Raspberry Pi Inbuilt Applications
    • Introduction to Command-Line

    Day 2

    • Introduction to Physical Computing
    • Understand GPIO and Its Functions
    • Introduction to NodeRED Platform
    • Write First NodeRED Application
    • Manipulate GPIO and Blink LED
    • Create GUI and Control LED.
    • Possibilities.

    Who Should Join?

    • Students
    • Faculties
    • Hardware Technology Enthusiast
    • Anyone who wants to learn new technology

    What do we provide?

    • 2-Days Practical Oriental Session
    • Community Support
    • Participation Certificate (After task completion)

    When and Where

    📅 Date: 28 and 29 August 2021 ⌚ Time: 8.00 PM to 10.00 PM

    posted in Events & Hackathons
  • RE: MakerGram Live | August 2021 Maker Update 📡 | Thread 🧵

    Student Design Competition 2021 by Altium, Upverter and IPC Education Foundation.

    21783bd5-a23c-466a-8c4e-61c346e74aa0-image.png

    Upverter Education, a division of Altium, the IPC Education Foundation, and Arduino are partnering to create the first student design competition to engage, educate, and enhance students’ proficiencies in PCB design, with a focus on solving some of the world’s most pressing environmental challenges.

    More details: https://education.upverter.com/courses/pcbethechange

    posted in News
  • MakerGram Live | August 2021 Maker Update 📡 | Thread 🧵

    📰 Updates

    • Raspberry Pi Rolls Out New Documentation Online

    603d3dc7-e9c4-4e89-88aa-a2fc75065e2a-image.png

    As of Monday August 9th, a new documentation site has been built and deployed directly from a documentation repository, using Github Actions.

    • Chip Shortage Challenges Maker Manufacturers:
      fcbdd0b8-2058-4821-8f83-f090fcadcc4b-image.png

    Adafruit, Sparkfun, and other wellsprings of amateur innovation face a new normal – IEEE Spectrum.

    • The new TI-84 Plus CE Python Graphing Calculator by Texas Instruments

    e1e721cc-ce81-414d-8aac-6965474ea21d-image.png

    The calculator runs a fork of CircuitPython on a dedicated Atmel processor inside: more details

    • tCam-Mini : Open Source Wireless Thermal Imaging Module based on Flir Lepton 3.5 and ESP32 by Circuitstate.

    d2e1ce3d-7b00-4e2d-80ad-7bcd525926a4-image.png

    tCam-Mini is a wireless thermal imaging module based on ESP32 and FLIR Lepton 3.5 Infrared camera module. The open source project is created by Dan Julio and was crowd funded through Hackster Launch and GroupGets. More details

    --

    Events 🎉

    • EdgeImpluse Imagine: The future of data-driven engineering starts now

    5580ea4c-459e-4de1-814d-8fc60e499269-image.png

    Hear from embedded machine learning industry leaders and pioneers and participate in live discussions, Join for the latest innovations in embedded machine learning for the real world. Register now

    • Work With by Silicon Labs Virtual conference.

    d54df3ee-56ab-4dfc-8887-ea2bd3faa0dd-image.png

    Design connected devices using best practices, guidelines and examples presented by IoT engineers Register Now.

    --

    Opportunity ✨

    • Call for Makers: Show Your Project at Maker Faire Shenzhen 2021 Virtually

    b1baf5a4-aca7-4df1-8970-9fd95631e91f-image.png

    This year on November 20-21, Maker Faire Shenzhen will take place in phygital mode. The makerfaire team also keeping the digital format on maker faire team channels, Join the great team of makers, innovative companies, startups, and artisans to show and tell your tinkering stories. More details.

    • EW Project Challenge 2021: Participate & build hardware to solve the problems, and get a chance to win amazing prizes worth $2000+ and opportunities.

    1a4e4e0d-d1dd-41f8-89c8-f9c1b1fe2c0a-image.png

    How we can make tomorrow more sustainable and efficient. How we can solve the problems by using technology. The challenge is to build projects that bring improvement, efficiency, and create an impact by solving problems. More details.

    • People.Planet.Product. Student Design Challenge

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    The Washing Machine Project has produced a manual, crank-handle washing machine called Divya that has been proven to save 75% of the time and 50% of the water taken to handwash clothes. The impact of this is huge, but the Divya team believe we can do more. More details

    • Code a Pookkalam by TinkerHub Foundation

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    Code-a-pookalam is a creative coding challenge organised this festive season from date to date.
    A grand prize of MacBook Air (13" M1) is up for grabs and it simply doesn't stop there! :star_struck:
    There are so many more exciting prizes to be announced soon! All the participants will receive a physical certificate from TinkerHub for their successful participation. More details.

    --

    Projects 🛠

    96c0c94d-a160-4734-afec-8afa249d47f6-image.png

    Demonstration Video

    208c2f50-3c4e-48f8-9e15-896842e09b76-image.png

    A Gesture controlled laser turret, we can control the movement of the laser by hand movement. With the help of OpenCV, we move the mouse in the computer by hand control. You can find the project details here.

    --

    posted in News