open source | open hardware | open data
Fig .: Ultrasonic level sensor
Fred has another implementation of an ultrasonic tank sensor with him SensESP and a Wemos D1 mini. The Ultrasonic sensor DS1603L detects liquid levels in a tank and provides the corresponding measured values via SensESP via WiFi SignalK. SensESP is a software framework for the Arduino IDE with which various sensors can be easily integrated into SignalK.… Continue reading
For hobbyists, the world of electronics offers interesting microcontroller modules with which many demanding projects can be implemented. Microcontrollers that can be easily and easily programmed are of particular interest. Atmel offers a range of 8-bit microcontrollers with many additional functions integrated, such as program memory, data memory, counters, pulse-width modulated outputs (PWM outputs), analog-to-digital converters (AD converters), digital-to-analog converters (DA converter), serial interface (RS232), various bus systems (I2C) and much more, so that you can implement your own electronic projects without much additional effort.… Continue reading
First of all, a few important notes that you should definitely pay attention to.
While searching the Internet for a battery monitor for DC voltages, I came across the PZME-017. The Peacefair company is known for various inexpensive battery monitors with LCD displays such as the PZEM-015.
Fig: PZEM-017 (100A version, with shunt and USB-RS485 adapter)
Fig: PZEM-015 (300A version as a pure display variant)
The PZEM-017 has the following features:
In contrast to the PZEM-015, the PZEM-017 has no display and transmits the measurement data via the Modbus.… Continue reading
Video https://youtu.be/0G_1A66hpyE
Video used as voltage input with limit alarm: https://youtu.be/XZPPG5St0Ko
https://www.segeln-forum.de/thread/79394-instrumentendisplay-diy/
Standard built-in instruments with a diameter of 52mm are often used to display various measured values on boats. These can often only be used for very special tasks with very special sensors. Unfortunately, the display layout differs depending on the task and there is no consistent appearance. In the search for a modifiable display, I came across a built-in instrument for an oil pressure gauge of 0...150 psi.... Continue reading
Stefan Kaufmann has on his website https://obenschlaefer.com/ presented an inexpensive energy monitor that is also interesting for boat enthusiasts. He originally built the energy monitor for his camper in order to be able to monitor the energy supply. The system is based on components from Victron on. The centerpiece is a Raspi with the free Venus OS firmware from Victron, which is also included in commercial hardware runs, but in this case on an inexpensive Raspi3B.… Continue reading
Video: https://youtu.be/NCJYmDuf2Jg
The Ruuvi sensor day is a small, smart sensor device. This allows the following data to be recorded:
The data is sent to a data terminal at defined intervals using Bluetooth Low Energy to save energy. This can be a cell phone, for example, where you can look at the data.… Continue reading
The AZ touch Mod is a small 2.4 ″ touch color display with 320 x 240 pixels. On the base board can be used as a control unit ESP32C or a Wemos D1 mini be attached. A small breadboard allows you to set up your own circuits to expand the display.
The AZ-Touch has the following features:
First of all, a few important notes that you should definitely pay attention to.
SensESP is a library that facilitates the integration of ESP8266 and ESP32 based sensors and actuators in a signaK network. The framework is based on PlatformIO and is mostly written in C++. Basically, recurring and important functions are mapped by the framework, so that programming and connecting your own sensors to SignalK is quite easy.… Continue reading
First of all, a few important notes that you should definitely pay attention to.
https://www.segeln-forum.de/thread/73307-multifunktionsdisplay-diy/
open boat projects LIVE:
Video presentation in German on the OBP 60 multifunctional display (45min presentation, 30min discussion)
After we have dealt with the M5Stack as a multifunction display have been busy and were able to show some applications at Boot 2020, we are taking a new approach for a new multifunction display.… Continue reading
After Christian at Boot 2020 in connection with his plotter had introduced a Bluetooth remote control there is now a new IR remote control. It turned out that Bluetooth is not really suitable for a remote control, as there were significant problems with Linux when creating the connection and the remote control did not work as expected.… Continue reading