Ask Me Anything About Zephyr & Linux Device Trees Notes – [01/21/2025]

This Thread is Linked to the AMA on Device Trees with Zacck Osiemo (@superbike_z) and Ming (@Ming)! Post your questions here—whether it’s about Zephyr RTOS, Linux distributions, or device trees […]

How to Resolve No Buffer Space Errors in CAN Communication With MCP2515?

I was previously working on a *distributed robotic control system* where multiple robotic arms communicate via *CAN Bus* to coordinate their movements. Each arm operates independently, but they share data […]

How can I accurately measure CPU usage for these ISRs while addressing nested interrupts?

I am using FreeRTOS on an STM32F4-Nucleo board and `vTaskGetRunTimeStats()` to measure task CPU usage with the following code: void configureTimerForRunTimeStats(void) { g_osRuntimeCounter = 0; } unsigned long getRunTimeCounterValue(void) { […]

I’m looking to upgrade my hardware to professional embedded projects

Hey everyone! I’m looking to upgrade my hardware to professional embedded projects not for educational purposes , i would like it to handle AI tasks, i already have esp and […]

How to Execute a Timed LED On/Off Sequence Using millis() Function

Hello ,I’m struggling with a problem. I want to execute a sequence of turning an LED on and off, but not just a simple on/off; I want a timed sequence […]

Issue with ISR Behavior in Zero-Cross Detection on Mega 2560 Board

Hii guys I’m creating lighting variations on PORTA with a MEGA 2560 board. I am using a zero-cross detection that triggers an interrupt, which calls the “void passage_a_0” function. A […]

Decoding a 4×16 Switch Matrix on Arduino for Conditional Logic

I’m looking to decode an existing switch matrix (4 Rows and 16 Columns, basically copy the states of the Rows and Columns). The goal is to ultimately have a [data] […]

How to Safely Flash USBMIDIKLIK Bootloader on a Mega Using an Uno on Linux Mint?

Good morning guys 👋🏻👋🏻 I’m diving into a project for a USB MIDI controller with a Mega (interface in the photo, the empty holes are for potentiometers, 12 buttons, 24 […]

Why Does My ATTiny85 Analog Input Return a Constant Value After 24 Hours?

Hi, I’m trying to get the value of my battery using an analog input of my ATTiny85 to create a gauge. To do this, I made a voltage divider to […]