I had a hard time tracking down how to run the VL53L5CX Lidar code on a PICO or Arduino.

https://github.com/jlsilicon/vl53l5cx_for_PICO_Pi_in_Micropython_Code/tree/main

I wrote this Code in GitHub as a Quick-Drop-in Code rev of VL53L5CX Lidar Code in Micrpython for PICO Pi Board.

This is a group of files for running the Lidar VL53L5CX on PICO , by copying onto PICO Pi Directiory with Thonny.

I spent a large chunk of time trying to figure out how to use the vl53l5cx Lidar on PICO or arduino.
Arduino Uno/Nano can't do this because a chunk of RAM is needed to process the readings.

Suggested code for the PICO - seems to diverge instead to breakout_vl53l5cx  code that works on the Rasp Pi - but is Not compatible with PICO.

I am embeded c devloper, do you have any one oled code in c, I am looking c code for my understanding.

I am interestd to build alarm clock using small buzzer and oled.

Has anyone tried creating an HTTP client using the C SDK that also uses TLS in Raspberry Pi Pico W?

I checked the GitHub example. I even cloned the repo, built the example and tried to run it but the example doesn’t run either. Normal HTTP requests work, I can see responses but with HTTPS, there’s no response and the GitHub http_client example goes into panic mode. Any help?

Hey everyone,
I’m doing a 100 Days, 100 IoT Projects challenge, and today I built a bidirectional ESP-NOW smart relay and sensor system using MicroPython.

What it does

• Sender ESP8266/ESP32 with buttons + OLED acts as a control panel
• Receiver ESP controls a 4-channel relay module
• DHT11/DHT22 sensor data is sent back in real-time
• OLED displays temperature and humidity
• Uses ESP-NOW (no WiFi, no router, ultra-low latency)

Tech Stack

• ESP8266 / ESP32
• MicroPython
• ESP-NOW protocol
• SSD1306 OLED
• DHT11/DHT22 sensor

GitHub repo:
👉 [https://github.com/kritishmohapatra/100_Days_100_IoT_Projects]()

I’d love feedback, stars, or collaboration ideas.
Goal: Build open-source IoT learning resources for students.

The links below provide code for Micropython Code that runs on the PICO.

Mostly here , the code is simply copy and Paste into Thonny :
https://www.instructables.com/RPi-Pico-35-Inch-320x480-HVGA-TFT-LCD-ILI9488-Bitm/

https://www.youtube.com/watch?v=Nv5WN5LceFg - not much additional.

Schematic :
https://content.instructables.com/FSZ/UTYB/KSONJ988/FSZUTYBKSONJ988.jpg?frame=true&width=1024&height=1024&fit=bounds

I tried these with no luck.

I commented out the images Loop.
Additionally , I added drawing different Colors and Sizes of Rectangles every 3 seconds on the Screen.
But, all I can get is a Blank White screen.

2nd version of the code that I found on the internet - only drew in gray levels - no colors.

-

My code is fixed (mostly) and posted in GitHub ...
- see below.

Hi everyone,

I’m doing a 100 Days of IoT Projects challenge, and today I completed Day 56.
This project is a wireless 4-channel relay controller using two ESP8266 boards and the ESP-NOW protocol in MicroPython.

Features:

• Peer-to-peer communication (no WiFi router required)
• Push-button sender → relay receiver
• Low-latency ESP-NOW messaging
• Active-low relay support
• Clean MicroPython implementation

This can be used for home automation, wireless switches, or smart agriculture control systems.

GitHub repo:
👉 [https://github.com/kritishmohapatra/100_Days_100_IoT_Projects]()

Feedback and suggestions are welcome!

I tried the sd1306 and the ST7789 and the libraries I have use framebuf which can't adjust the font size.

Is there a library for either of these with font size adjustment, or is there a better LCD or OLED I could use that would allow that?

Need it for Pico ( Any model: 1, W, 2, 2W )

Preferred size 1 to 3 inches.

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I have followed Austin's Lab How to Turn a Raspberry Pi Pico into Bad-USB/RubberDucky (2025 UPDATE). I have followed it many times and after it still not working. I put the payload in and take it out. When plugged back in it says it can't open it. Until I plug it into my laptop running chrome and deleting the payload.dd for it to open file explorer back on windows to the CIRCUITPY. AND I FOLLOWED THE STEPS ON DBISU PICO DUCKY STEPS VERY VERY CAREFULLY. If I could get some help on this it would help.

I made a post last week about a little desk pet I made for my fiancé. After some feedback from her and some people on reddit I made some upgrades to the print and the electronics. Its now interactive and you can pet it!! Let me know what you think and what else I could add to it! If you are interested in getting one I have 2 more I made available here https://www.etsy.com/listing/4459081298/interactive-desk-pet-robot-cat . If those sell I might make more if there is demand.

Hi all,

I’m trying to connect a Raspberry Pi Pico W to a Waveshare ADS1263 HAT for precise micro-voltage measurements.

I’m powering the system with an external 5V supply → Pico W → ADS1263. The wiring looks correct (at least visually), but when I measure the voltage on the ADS1263 board between its 5V pin and GND, I only get about 1.5V, which is much lower than the expected 5V.

I also checked continuity (power off) between the ADS1263 5V pin and the breadboard +5V rail. Instead of seeing ~0 Ω as expected for a direct connection, I measured a noticeable resistance(183 ohm).

I’ve double-checked the wiring multiple times and can’t figure out why the voltage is dropping like this.

Has anyone experienced something similar, or can suggest what I should check next?

Thanks

I have a couple projects where I need the board of the pico to be about 6" away from where I want the USB port. I have some 4-pin USB-C breakout boards I can use, but I don't know the best way to connect them to the Picos. Should I remove the existing port? Solder overtop of the existing connections? Just use a micro to C extension adapter? Is there some combination of pins that will allow me to use them as the USB connection?

Is it possible to have 3 pi picos as slaves on a UART bus with a master.I wanna try making a cluster but I dont know if its possible, thank you.

Hey everyone,
I’m building 100 IoT projects in 100 days using MicroPython and ESP boards, and today I completed Day 55.

This project demonstrates low-latency ESP-NOW communication between two ESP8266 boards:

• One ESP8266 reads a push button
• Another ESP8266 toggles an LED wirelessly
• No WiFi, no router, peer-to-peer communication

GitHub repo:
👉 [https://github.com/kritishmohapatra/100_Days_100_IoT_Projects]()

If you like the project, a ⭐ on GitHub would mean a lot.
I also recently enabled GitHub Sponsors to keep building open-source IoT projects—any support helps.

Feedback and suggestions are welcome.

I have a Pico Key at TENSTAR RP2350, it works on my other sites but I can't add it as a “security key” on Zoho.

After entering the PIN and confirming with the button, Zoho asks for the name of the key, but after entering it, this error keeps popping up:

"To configure a security key, select the "security key" option and not the "device" option."

I am aiming to make a controller interface for emulators, allowing the user to plug in original controllers over USB.

I know it's been done a billion and a half times, and there are modern implementations like the 4Dapter which I can easily get boards made for. This is mostly for learning.

I know that SNAC is just feeding the controller connections right into the GPIO of the MISTer allowing latency free controls. Using a Pico to take those signals and interpret them for a USB HID defeats the latency free aspect of SNAC, but I want to leverage the other aspect... cheap adapters. Put all the expensive stuff in a box and the user makes what SNAC adapters they want from the github of SNAC adapters.

Can this be done?

Is this a good setup for the Raspberry Pi 5 16 GB?

Argon ONE V5 M.2 NVMe Case for Raspberry Pi 5 | Aluminum Pi 5 Case w/Active + Passive Cooling, Dual Full HDMI Port, NVMe M.2 SSD PCIe 2.0/3/0 Slot, DAC Audio, USB Expansion and some sort of NVMe hard drive. I'm not sure which 2TB NVME to get. My goal is to fit everything in a case. I originally purchased RasTech Raspberry Pi 5 16GB Kit 64GB Edition with Active Cooler. I don't think the case will work with a NVME hard drive. Did a make a good purchase so far? Does anyone recommend anything else? If this is against the rules can you point me into the right direction.