Arduino projects
by Floris Wouterlood -- June 3, 2023 -- Summary -- Here we use components reported previously. Two events are being logged simultaneously: generated AC power from my solar panels and, in sync, AC grid voltage fluctuations. Data consists of pulses generated by my solar kWh production meter and output from a ZMPT101B AC voltage transformer... Continue Reading →
by Floris Wouterlood -- May 1, 2023 -- Summary --Here we use the ZMPT101B AC voltage transformer module to determine and log the stability of the AC power inside the home. A cord connected to the AC side of the ZMPT101B is plugged into a wall outlet. The DC side of the module has an... Continue Reading →
by Floris Wouterlood -- March 17, 2023 - Summary -- I upgraded a solar power pulse meter that I constructed nearly six years ago and that has been working 24/7 all those years. This pulse meter is part of a ‘bucket brigade’. The principal component of this brigade is a digital kWh meter that opens... Continue Reading →
by Floris Wouterlood – February 4, 2023 -- Summary -- A Mendocino motor is a solar-powered, magnetically suspended electric motor. The first of its kind was constructed by a member of the team that invented the modern semiconductor solar cell.In the current project we examine a fan-equipped commercial Mendocino motor. Rotation speed is determined with... Continue Reading →
by Floris Wouterlood - The Netherlands - January 1, 2023 -- Summary --We describe here the pin-to-pin connectivity of an ESP8266 microcontroller board with an 1.8 inch diagonal 128*160 pixel TFT display with ST7735S controller and a SPI interface. Introduction --The advantage of combining an ESP8266 microcontroller board and a TFT display does not need... Continue Reading →
by Floris Wouterlood - The Netherlands - December 3, 2022 -- SummaryThis report deals with two devices mounted on a common supporting board. The first device is an ESP8266 NodeMCU that powers an 1.8 inch diameter SPI TFT with an ST7735S controller. It gets input from an 8*8 pixel AMG8833 infrared sensor. Data is interpolated... Continue Reading →
by Floris Wouterlood - The Netherlands - November 1, 2022 -- Summary -- Long ago a clock was an instrument maker’s masterpiece, full of cogs and gear wheels powered by a spring or by gravity. Notwithstanding all sorts of decorating boxes, baroque and romance the form factor of an archetype analog clock typically is circular.... Continue Reading →
by Floris Wouterlood - The Netherlands - October 3, 2022 SummaryThe fast refresh rate of the AMG8833 Grid-EYE 88 pixel thermal infrared sensor is exploited here to construct a thermographic video camera. Two configurations are presented that both feature an ESP32 microcontroller: one combining the thermal sensor with a 130*130 pixel transflective TFT display, an... Continue Reading →
by Floris Wouterlood - the Netherlands - September 1, 2022 -- Summary -- In some Arduino projects the necessity is felt to save collected data. One of the solutions, especially in mobile projects, is to store data on a SD card. We focus here on wiring an external SD card reader with, respectively, an Arduino... Continue Reading →
by Floris Wouterlood - The Netherlands - August 2, 2022 -- Summary -- One of the attractive features of the AMG8833 88 pixel thermal infrared sensor is its 10Hz data refresh rate. Wired to an ESP32 microcontroller board such a fast datastream can be exploited to the max. The software running on the ESP32 interpolates... Continue Reading →
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