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Initial Design
Log from BWLC1A: Yet Another ESP32 Asset Tracker
Initially, I roughly design the device to meet the following points: Slim and smallCellular connectivityGNSS -based location trackingLow-costBattery-powered and Rechargeable Working on the schematics, I was able to achieves those points and choses...

Week 3 part 2 - testing
Log from 25in24 Electronics Project Board
Well, initial testing was more difficult than expected - took about five hours just to get a couple of basic circuits working. Made a number of incorrect assumptions / mistakes including:Assuming it might be differences between components (germanium...

Prerequisites and software
Log from VGA videocard for microcontrollers
Sometimes, when making your own devices on microcontrollers, there is a need to display huge amounts of information on a display and to use a bigger screen for ease of perception. Unfortunately, there are no ready-made and budget-friendly solutions for...

From prototype to product creation
Log from VGA videocard for microcontrollers
First of all, you should pay attention to the ROM used. The flash-ROM chip from an old computer motherboard has a finicky parallel interface where the address is written in two runs. This complicates the operating logic and increases access time. Additionally,...

Step 1:hardware
Log from Weather Station With A7670 -- Remote Monitoring
Insert the SIM card into the slot on the back of the boardConnect 0.96 OLED to Maduino Zero 4G LTE(CAT1 A7670) 's SCL and SDA;Connect Temperature and humidity sensor's data pin to Maduino Zero 4G LTE(CAT1 A7670) 's D6;Connect Photosensitive...

Step 2: Firmware about sensor
Log from Weather Station With A7670 -- Remote Monitoring
At first, we need to prepare the environment for ESP32 development board programming in arduino, and you can cheak this guide.This is a library for our Monochrome OLEDs based on SSD1306 drivers. #include This library allows you to communicate with...

What is an egg?
Log from Wobble
Starting project by learning more about eggs.. I'd like to figure out how to create a nice 3D printed egg shape that can hold a circuit board, battery, and motor assembly. I'll start by printing off some free variants from thingiverse. Ultimately I want...

Development boards and wobbling madness!
Log from Wobble
I started writing some programs to control the DRV8825 using a few small embedded boards I had lying around - the Metro by Adafruit and Arduino Uno both of which are based on the ATMEGA328P processor. I went with these because I wanted something...

First egg print!
Log from Wobble
The first full size egg finished printing after 40 hours. This was a fun first attempt and my son loves to kick it around the house. I ordered some rainbow colored filament for the next attempt. Things to change: Decrease wall thickness to no more than...

1080 LEDs in the Palm of Your Hand!
Log from MiniSphere
We're starting to finalize some of the bigger pieces of this project, so we're excited to start sharing our progress! We've got the geometry and LED arrangement set, now we're testing our electrical design and getting started on writing some animations....

Supplies
Log from LoRa->4G Gateway_Soil monitoring with Cloud Server
What you need are just: Lora Temperature/ Humidity/ Soil Moisture Sensor V3 Note: detect the soil moisture/air humidity/temperature and broadcast every 60 minutes. ESP32S3 based 4G LTE module LoRa Expansion Board This gateway is composed of ESP32S3 4G...

Step 1：Hardware
Log from LoRa->4G Gateway_Soil monitoring with Cloud Server
Insert the SIM card into the slot on the back of the board

Step 3: Firmware
Log from LoRa->4G Gateway_Soil monitoring with Cloud Server
First, we need to prepare the environment for ESP32 development board programming in Arduino, and you can check this guide.RadioLib library is a wireless communication library. It supports a variety of wireless communication modules, including LoRa,...

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