I've temporarily relocated the physical form of Hacking Nature's Musicians to the other-worldly environment of Tortuga Escondida (near Akumal, Mexico) for a one-month fellowship on los musicos de la selva. Thankfully, my supplies made it through...
What is Lora: Lora is a proprietary system designed by Semtech. According to them: LoRa is a proprietary spread spectrum modulation scheme that is derivative of Chirp Spread Spectrum modulation (CSS) and which trades data rate for sensitivity within...
One curious type of sensor that can be realized with simple means is a soil moisture sensor to monitor wether plants need to be watered. A simple way of achieving this is to measure the soil resistivity with two electrodes. Unfortunately that is not...
To note with these gas sensors: we'd want a fan to get good ambient air flow into the enclosure containing the sensors! PM 2.5 Nova PM Sensor SDS011 (0.3 to 10μm) https://components101.com/sensors/nova-pm-sensor-sds011-pinout-features-working-applications-datasheet ...
1. USB power supply and a reading light USB power supply add-on gerber rendering: I added two additional solder pads (power isolation jumper) to enable the power indicator LED. Some may need it, some not. Reading light add-on gerber rendering: The LED...
Mark J HughesJun-7 12:57 PMAre you in SoCal? hamsterdaveJun-7 12:57 PMBack in my day, we had to know CW at FIFTEEN words a minute to even look at a radio! fidJun-7 12:57 PM@Mark J Hughes You also don't need a calculator during the test session. K6FID...