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SpacerLabs - solutions & software
Activities in electronics at Spacerowa Laboratories... hardware & software... prototyping & programming
09 March 2025
Web Page Viewer
01 January 2025
Stand for the PMD - display version
🔘 Until now the atmospheric "Particulate Matter Detector ( PMD )" project based on a 🪴Plantower 🗼PMS5003 particle concentration sensor and having a ⎚ display had been assembled on a solder-less 🍞 breadboard, ( see 📅16 June 2024 ), while awaiting further development.
A 'U ' cross-section 🖼frame, which functions as a stand, has been designed and produced on a 3-D printer 🖶 so that the PMD ( comprising PMS5003, colour display & µ-controller ) is now self-contained and can be easily moved to different locations.
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Front view |
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Rear view |
25 December 2024
DdsModTerm software for AD9850/51 modules
🔘In the post 📮dated 📅27 July 2023, about how a µ-controller and a smart phone🖁 App could be used to upload 🠝 configuration settings to modules based on AD9850 and AD9851 DDS chips in order to generate a frequency, it was briefly mentioned that a USB dongle and pc interface software was another method in use here. As that software has recently been updated it would now be a good time to give a description of that method also.
'DdsModTerm' user interface |
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(L) USB-SPI dongle (R) AD9851 DDS chip evaluation board on adaptor |
01 December 2024
Webserver for the Greenhouse Gas Sensors
🔘 Carbon Dioxide, CO2, and Methane, CH4, are present in the atmosphere in part due to burning fossil fuels 🏭, and farming 🐂( particularly livestock ). They are potent 'greenhouse' gases as they have a significant impact on global warming, which drives climate change.
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Webpage opened in a smart phone's browser |
The concentration ( parts per million, ppm ) measurements📏 are updated in real-time 🕔, and can be quickly viewed on a mobile device's🖁 browser, saving time over logging in to cloud ☁ based repositories, if historical data are not required.
13 October 2024
Solarometer 🔆
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Solar_Meter App user interface |
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Webpage displayed on a phone's browser |
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VISUVIR_Viewer App user interface |
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SpacerLabs Node-Red dashboard for the Solarometer |
17 September 2024
Node-Red dashboard for the PMS5003
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Node-Red workspace, (L) node palette, flow, (R) debug sidebar |
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Node-Red dashboard |
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Part of dashboard enlarged to show notification pop-up |
06 August 2024
IoT Cloud Platforms☁
🔘Several previous posts have mentioned the 🔗Ubidots and 🔗Thingspeak IoT cloud ☁ platforms, conveniently accessed from a web-browser, that have been used with some of our sensor based projects to capture, visualise and analyse 💹 the sensor measurements. Two others, 'Arduino IoT Cloud' and 'Thingsboard', have been found and tried out in conjunction with the PMS5003 Particle Concentration Sensor; ( see 8 April & 16 June ). Setting up was quick and straightforward, following the typical process for such platforms of creating an IoT 'thing', assigning 'variables', associating a 'device', programming & connecting the device, & designing a 'dashboard'; our device is a "D1 Mini Esp32" micro-controller board.
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Example of Arduino IoT Cloud dashboard - desktop version |
An account was opened for the 30 day free trial period of the 🔗Thingsboard cloud 'Maker' version. There is a large selection of attractive widgets for the dashboard, sorted by various categories. For example, under the "Air 🜁 Quality" category there are numerous widget designs specifically for the measurement data relevant to air-quality. Some were chosen for the dashboard shown in the image below
16 June 2024
PMS5003, colour display, BluetoothⓇ & cloud
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Version with display using prototyping board |
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App user interface opened |
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PMS5003 Ubidots dashboard - ( click to enlarge ) |
08 April 2024
PMS5003 Digital Particle Concentration Sensor
PMS5003_Serial software receiving & displaying data |
29 February 2024
PM2.5 data from AQM now on the cloud
Part of the dashboard showing the new widgets for PM2.5 |
Node-Red 'flow' to trigger an email warning of poor air quality |