Just cut the trace to PCB antenna and solder a proper one:
Adding an antenna to a bluetooth module
Category Archives: Projects
Controlling ESC via USB
Yesterday I found this ESC and BLDC motor in my electronics box and decided I’ll test if it really works. Continue reading Controlling ESC via USB
Turning ST-Link programmer into IR controlled USB keyboard
As I promised last time, I’m going to continue with st-link programmer clones. This time I wanted to use mbed which has some ready made libraries for utilizing USB and since it was very comfortable to use DFU upload with arduino library, at first I checked if it is usable with mbed too.
Continue reading Turning ST-Link programmer into IR controlled USB keyboard
Bricking and unbricking Vontar X96 mini
So I bought a media player again. It’s Vontar X96 mini with 1GB RAM and 8GB eMMC and according to rule “Don’t turn it on, take it apart!” it’s exactly what I did: Continue reading Bricking and unbricking Vontar X96 mini
Cheap 433Mhz receivers comparison
I bought 2 cheap 433Mhz receiver modules from aliexpress for comparison. Continue reading Cheap 433Mhz receivers comparison
Old radio clock upgraded to NTP
I own the radio clock on the title picture. I’ve used it for some time but it annoyed me because it drifted a lot (several seconds a day). It’s synchronized to power network frequency but it doesn’t work well in my case and I hate to adjust the clock over and over again. So I decided to sync it automatically using esp8266. Continue reading Old radio clock upgraded to NTP
ST-Link clone as STM32 dev board
Last time I played with this device, I only uploaded gnuk token software and it was done. This time I wanted to try some developement in Arduino framework. Continue reading ST-Link clone as STM32 dev board
DIY reflow fail
I wanted to try reflow soldering in kitchen owen. I had two boards – one with working ESP12 module (left) and one with working base board (right):
ESP32 NTP OLED clock
As a first project with my new ESP32 module with OLED display I chose to build OLED clock. I thought I’ll just find some existing code, upload it and it’s done. There are a few such projects for ESP8266 in NodeMCU. So I started with NodeMCU upload. Continue reading ESP32 NTP OLED clock
WiFi enabled sprinkler controller
This project took me a year to finish but finally it’s done. What I wanted is to build an automatic IoT sprinkler controller from cheap parts. This is my story.