Robu - India's Innovative Electronics Community

Hi everyone, I’m trying to get my "0.96 Inch I2C/IIC 4pin OLED Display Module BLUE" to work with my Raspberry Pi 4, but I’m stuck. The display shows up when I scan for it on I2C (address 0x3C), but I can’t get anything to actually display on the screen. Here’s what my setup looks like: Setup Connect ...

Hi all, I’m facing issues with data logging on my STM32F407VET6 using FatFs and an SD card via SPI. The logging starts fine but then either freezes or corrupts the file after some time. I’ve tried adjusting buffer sizes, checked SPI communication, and ensured a stable power supply, but no luck. Any a ...

Hi all, I'm having trouble with my SIM800L V2 module not registering on the network. The NET LED keeps blinking rapidly, indicating no connection. Here's my setup: Power: 5V/2A supply SIM card: Works in a phone (JIO 4G enabled) Antenna: Properly connected AT Command (AT+CREG?): Returns 0,2 (not ...

I commonly use the Raspberry Pi and ESP8266 in my IoT projects. The Raspberry Pi is a versatile single-board computer that handles complex tasks, ideal for home automation and data collection, with easy network connectivity and support for Python programming. In contrast, the ESP8266 is a low-cost ...

It looks like you're having trouble establishing a TCP connection with your 4G LTE Shield. Here are some steps to help troubleshoot the issue: 1) Check APN: Ensure the APN (airtelgprs.com) is correct for your provider. 2) Signal Quality: Use AT+CSQ to check the signal strength. 3) Verify PDP Context ...

Hello, I’m currently working with the ESP8266 module and am facing an issue where it is not being detected as a COM port on my computer. Despite trying several troubleshooting steps, the problem remains unresolved. Troubleshooting Steps Taken: 1) Different USB Cables: I’ve tested with multiple USB ca ...

Introduction: I wanted to share my experience with using digital radios for testing and fine-tuning radio channels. Digital radios have proven to be incredibly helpful in managing and optimizing signal performance. Here’s how they can be beneficial and how you can get started with them. Benefits of ...

Hello everyone, My name is Mithilesh Solanke, and I’m currently interning with the technical team. I’m excited to join this forum and connect with all of you. I look forward to sharing knowledge, learning from your experiences, and collaborating on various technical projects. If you have any que ...

Hello everyone, I'm exploring ways to improve network performance on the Raspberry Pi 4 for my IoT projects and thought I'd share some insights and tips: 1. Wi-Fi Optimization: Use a USB Wi-Fi adapter with better range and speed if your project requires improved wireless connectivity. Positioning ...