Category Archives: Uncategorized

GPS WiFi Sensor

I had a request from a customer to add GPS capabilities to a reed sensor so the deployment of the sensors can be tracked on a map. It is pretty straight forward to integrate a GPS module like the U-Blox … Continue reading

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WiFi Distance Sensor with configurable heartbeat and WiFi connection

WiFi Distance Sensor I have tinkered with mostly every sensor I got a hold of and now I found a pretty cheap distance sensor. I decided to integrate it with the ESP8266 and get some  distance measurements via WiFi. The … Continue reading

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4×1 WiFi Wireless Antenna Switch for Amateur Radio

Buy one at Tindie I started playing with electronics back when I was 10 years old in Argentina, where I grew up. Then I got my ham radio operator license when I was 16 years old and I was very … Continue reading

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Open/close sensor with SMS text alarm

Our garage faces the alley and it is not unusual to hear of people leaving the garage door open and get stuff stolen. The trade offs of leaving inside the loop in Houston as it is for any large city … Continue reading

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WiFi Analog/Digital Module reads analog or digital data, returns the values and responds according to programmable limits. MQTT protocol

Ready to use boards available at Tindie WiFi Analog/Digital Module reads analog or digital data, returns the values and responds according to programmable limits. MQTT protocol The analog/digital control module reads analog data and digital data through its 2 input terminals. … Continue reading

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WIFI Color Detection with the ESP8266 and MQTT messaging

The previous implementation of the WIFI color detection was done with an ad-hoc messaging system. Now, the most bang for the buck would be to have MQTT integrated, as it is much more flexible in terms of the message format … Continue reading

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WIFI Color Detection with the ESP8266

: The reading of the color components is done via a TCP request to the board. The reading returns a frequency in KHz proportional to the intensity of the color. The frequencies in KHz are returned in a JSON string. … Continue reading

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