Blue2monster
@blue2monster.bsky.social
Nerd, Electronics, PCBs, eINK, ePAPER, ESP32, KiCad, Arduino, SolarHarvesting
This Device really got me thinking: WHY 2x ESP32?
The interesting part about it is: It is the same as Waveshare www.waveshare.com/product/ardu...
de.aliexpress.com/item/1005009...
Got one for 23 €
Finally:ESP32 for BT sink and another ESP32-S3 for Display. Both ESP32 on one USB Connector
The interesting part about it is: It is the same as Waveshare www.waveshare.com/product/ardu...
de.aliexpress.com/item/1005009...
Got one for 23 €
Finally:ESP32 for BT sink and another ESP32-S3 for Display. Both ESP32 on one USB Connector
September 24, 2025 at 9:25 PM
This Device really got me thinking: WHY 2x ESP32?
The interesting part about it is: It is the same as Waveshare www.waveshare.com/product/ardu...
de.aliexpress.com/item/1005009...
Got one for 23 €
Finally:ESP32 for BT sink and another ESP32-S3 for Display. Both ESP32 on one USB Connector
The interesting part about it is: It is the same as Waveshare www.waveshare.com/product/ardu...
de.aliexpress.com/item/1005009...
Got one for 23 €
Finally:ESP32 for BT sink and another ESP32-S3 for Display. Both ESP32 on one USB Connector
Design of a PCB for a simple FM Radio takes longer than expected. More and more ideas come up. Dual FM Tuner. I2S Audio, Synth VCO, BME690 Air Quality and #LoRa or #Meshtastic support. Did I mention ESP32-C3? Or Seeed Xiao Bord support?
September 22, 2025 at 8:29 PM
Design of a PCB for a simple FM Radio takes longer than expected. More and more ideas come up. Dual FM Tuner. I2S Audio, Synth VCO, BME690 Air Quality and #LoRa or #Meshtastic support. Did I mention ESP32-C3? Or Seeed Xiao Bord support?
Just Order complete Laptops from China with 10.000 i2c Sensors INSIDE... Desolder them and they are taxfree
April 15, 2025 at 6:42 AM
Just Order complete Laptops from China with 10.000 i2c Sensors INSIDE... Desolder them and they are taxfree
Working on a small multiuse PCB layout. Works with E-Ink and LCD Touchscreen. Several Sensors on Board(Gyro, Mag, ACC, Temp, LuX), RTC, LiPo Bat Charger and BME688 Air Quality Sensor on a size of 28x26mm
April 13, 2025 at 4:15 PM
Working on a small multiuse PCB layout. Works with E-Ink and LCD Touchscreen. Several Sensors on Board(Gyro, Mag, ACC, Temp, LuX), RTC, LiPo Bat Charger and BME688 Air Quality Sensor on a size of 28x26mm
You See in the Pictures the folding.
I placed 2 Display connectors on my PCB Design. One to fold over the Edge and one to fold on top.
I placed 2 Display connectors on my PCB Design. One to fold over the Edge and one to fold on top.
April 9, 2025 at 1:23 PM
You See in the Pictures the folding.
I placed 2 Display connectors on my PCB Design. One to fold over the Edge and one to fold on top.
I placed 2 Display connectors on my PCB Design. One to fold over the Edge and one to fold on top.
Updateing KiCad :-) to Version 9.0
February 20, 2025 at 8:09 PM
Updateing KiCad :-) to Version 9.0
New PCB Idea: #PCBPhotos
ESP32-S3 + Round GC9A01 Display with some clever Sensors: BME690/BME688 for Air Quality, BNV080 for Air Quality(Grey Box), LSM6 Gyro+ACC, LIS3 Magnetometer, MAX98357 Audio Amp, ICS43434 Microphone, BH1750 Ambient Light, 2x WS2812 RGB LED. (ready to connect to #Seeed Display)
ESP32-S3 + Round GC9A01 Display with some clever Sensors: BME690/BME688 for Air Quality, BNV080 for Air Quality(Grey Box), LSM6 Gyro+ACC, LIS3 Magnetometer, MAX98357 Audio Amp, ICS43434 Microphone, BH1750 Ambient Light, 2x WS2812 RGB LED. (ready to connect to #Seeed Display)
February 20, 2025 at 7:57 PM
New PCB Idea: #PCBPhotos
ESP32-S3 + Round GC9A01 Display with some clever Sensors: BME690/BME688 for Air Quality, BNV080 for Air Quality(Grey Box), LSM6 Gyro+ACC, LIS3 Magnetometer, MAX98357 Audio Amp, ICS43434 Microphone, BH1750 Ambient Light, 2x WS2812 RGB LED. (ready to connect to #Seeed Display)
ESP32-S3 + Round GC9A01 Display with some clever Sensors: BME690/BME688 for Air Quality, BNV080 for Air Quality(Grey Box), LSM6 Gyro+ACC, LIS3 Magnetometer, MAX98357 Audio Amp, ICS43434 Microphone, BH1750 Ambient Light, 2x WS2812 RGB LED. (ready to connect to #Seeed Display)
Greetings from the woods :-) I do not know what this deer wants to tell me
January 11, 2025 at 3:00 PM
Greetings from the woods :-) I do not know what this deer wants to tell me
how about adding an ESP32 directly to it?
January 11, 2025 at 2:32 PM
how about adding an ESP32 directly to it?
Seed Display with self Made audio Extension works.. on my way to Bike Computer
January 5, 2025 at 8:51 PM
Seed Display with self Made audio Extension works.. on my way to Bike Computer
First RX TX confusion this year😄
January 4, 2025 at 9:35 AM
First RX TX confusion this year😄
Redesigned a litte EINK Board. Now with RTC, Gyro, Magnetometer and a side RGB LED
December 30, 2024 at 6:20 PM
Redesigned a litte EINK Board. Now with RTC, Gyro, Magnetometer and a side RGB LED
Live measurement
December 15, 2024 at 7:09 PM
Live measurement
Twmpature curves.
December 15, 2024 at 7:06 PM
Twmpature curves.
K-type Thermologger PCB Works. Made with KiCad
December 15, 2024 at 7:05 PM
K-type Thermologger PCB Works. Made with KiCad
Refinement of the PCB Design of a USB C Variable Power Supply using USB C PPS Standard
December 13, 2024 at 8:23 PM
Refinement of the PCB Design of a USB C Variable Power Supply using USB C PPS Standard
Redesigned a USB PPS Lab Power Supply. Based on jasontoo SparkAnalyser.
December 12, 2024 at 8:24 PM
Redesigned a USB PPS Lab Power Supply. Based on jasontoo SparkAnalyser.
How IT started , how it ended. Dead sensor. Bought 3 gy87 on Ali. All dead
December 1, 2024 at 2:06 PM
How IT started , how it ended. Dead sensor. Bought 3 gy87 on Ali. All dead
other side of the PCB without the Eink Screen. New feature MicroSD Card Reader
November 24, 2024 at 8:44 PM
other side of the PCB without the Eink Screen. New feature MicroSD Card Reader
You can not imagine how much time it takes for FineTuning a PCBDesign. Everytime you look at it you find some new issue that you just need to fix in a moment. Or all of a sudden you have a new Idea
November 24, 2024 at 8:43 PM
You can not imagine how much time it takes for FineTuning a PCBDesign. Everytime you look at it you find some new issue that you just need to fix in a moment. Or all of a sudden you have a new Idea