Electronic, 3D printing and embedded programming
To help with fast prototyping, I’m going to create a set of shields for the WeMos D1 mini. The shield of this article manages the EBYTE LoRa device (E22, E32 and E220) with HardwareSerial, already exists a variant with SoftwareSerial.
In this article, we’ll understand the security system used by Amazon, with a certificate, to connect our device via MQTT.
To help fast prototyping I’m going to create a set of shield for WeMos D1 mini, the shield manage a 3.3v relay with configurable pins
It’s time to connect our device to AWS IoT core via MQTT services, in this tutorial I’d like to connect an esp32 an esp8266 and an Arduino MKT 1010 WiFi to these services.
Here a briefly introduction and I show all the prerequisite.
NodeMCU v3 high resolution pinout and specs
For fast prototyping, I will create a set of shields for the WeMos D1 mini; the first is a service board with integrated pcf8574 IC, an encoder, and five other pins to use as input or output.
After carrying out all the calibrations, all that remains is milling our piece. If the whole process is successful, I expect an excellent final product.
One of the most important features is the auto-level. Even if your CNC is precise, it will never be accurate to one-hundredth of a millimeter, but to carry out the removal of copper, you will have to have an excellent level of precision.
Here we are going to learn how to do auto-level.
I have been prototyping PCBs with the CNC for years. I have created a CNC machine suitable for this, and today I would not know how to do it without it.
I have been using bCNC for some time as a GCode sender, a very simple open-source software, we will see how to install it and do the probe.
In this series of article about firmware and how to update It, I’d like to add a series of alternative methods of updating that are very useful for me.
In this article, we will learn how to add an FTP server to our device and use It to upload firmware and filesystem updates.
