# Big diy SENSOR topic **URL:** \ **Category:** End Devices (Nodes)\ **Created:** [June 26, 2016, 4:02pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600 "2016-06-26T16:02:13Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 9, 2016, 4:56pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/21 "2016-07-09T16:56:24Z")
**[COMPARING](http://www.kandrsmith.org/RJS/Misc/Hygrometers/calib_many.html)** HYGROMETERS ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 10, 2016, 7:33am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/22 "2016-07-10T07:33:00Z")
_sensors of the near future_ ---
**Author:** ![etsarnas](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/etsarnas/32/35697_2.png) [@etsarnas](https://www.thethingsnetwork.org/forum/u/etsarnas)\ **Post date:** [July 11, 2016, 3:26pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/23 "2016-07-11T15:26:29Z")
Topic 16 - Air Quality with the MQ-Series of gas detectors [http://www.gearbest.com/sensors/pp\_261780.html](http://www.gearbest.com/sensors/pp_261780.html) ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/a/a831c0b814597159509811045d3c223642c1549b.png) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 11, 2016, 5:08pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/24 "2016-07-11T17:08:56Z")
in Holland oa [hier](http://www.vanallesenmeer.nl/Sensors) en [hier](https://www.kiwi-electronics.nl/adafruit/adafruit-sensors) verkrijgbaar [eBreathalyzer](https://www.b4x.com/android/forum/threads/ebreathalyzer-wifi-enabled-cheap-ebac-sensor.58266/) use case ---
**Author:** ![Rob65](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/rob65/32/12469_2.png) [@Rob65](https://www.thethingsnetwork.org/forum/u/Rob65)\ **Post date:** [July 12, 2016, 4:30pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/25 "2016-07-12T16:30:37Z")
also available from [TinyTronics](http://www.tinytronics.nl). I just picked up some stuff in EIndhoven today: “Yes - LoRa is becoming a big hit - I am also looking at some LoRa modules to sell.” 🙂 I previously bought a lot of stuff directly from China, but after having some problems with faulty stuff, I now buy most of my stuff from this shop. ---
**Author:** ![JeroenB](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jeroenb/32/48515_2.png) [@JeroenB](https://www.thethingsnetwork.org/forum/u/JeroenB)\ **Post date:** [July 12, 2016, 8:30pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/26 "2016-07-12T20:30:38Z")
[xx - Lightning Sensor] > **[AS3935 Digital Lightning Sensor Breakout (3V-5V Arduino, RPi compatible) | eBay](https://www.ebay.com/itm/AS3935-Digital-Lightning-Sensor-Breakout-3V-5V-Arduino-RPi-compatible-/231658716395?hash=item35efef7ceb:g:U9UAAOSwDNdV1Adr)** > > AS3935 Digital Lightning Sensor Breakout (3V-5V Arduino, RPi compatible) | eBay! ---
**Author:** ![JeroenB](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jeroenb/32/48515_2.png) [@JeroenB](https://www.thethingsnetwork.org/forum/u/JeroenB)\ **Post date:** [July 12, 2016, 8:42pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/27 "2016-07-12T20:42:05Z")
> **[LJ12A3-4-Z/BX Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm New...](https://www.ebay.com/itm/LJ12A3-4-Z-BX--Detection-Switch-NPN-DC6-36V-4mm-New-/271870876467?hash=item3f4cc45b33:g:hjUAAOSwrklVVW6l)** > > Polarity: NPN. 1 xLJ12A3-4-Z/BX Inductive Proximity Sensor Detection Switch. Part number: LJ12A3-4-Z/BX. Detection objects: Conductor. Detection distance: 4mm. Note: Due to the difference between different monitors, the picture may not reflect the... ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 14, 2016, 12:30pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/28 "2016-07-14T12:30:41Z")
[1 - temperature] > **[Infrared Non-contact Temperature Measuring Sensor Module Mlx90614 Sensor | eBay](https://www.ebay.com/itm/Infrared-Non-Contact-Temperature-Measuring-Sensor-Module-MLX90614-BBA-Sensor-/311656657205?hash=item48902f3135:g:vXEAAOSw2zlXh4JJ)** > > Find great deals for Infrared Non-contact Temperature Measuring Sensor Module Mlx90614 Sensor. Shop with confidence on eBay! - [https://learn.adafruit.com/using-melexis-mlx90614-non-contact-sensors/wiring-and-test](https://learn.adafruit.com/using-melexis-mlx90614-non-contact-sensors/wiring-and-test) - [https://learn.sparkfun.com/tutorials/mlx90614-ir-thermometer-hookup-guide](https://learn.sparkfun.com/tutorials/mlx90614-ir-thermometer-hookup-guide) ---
**Author:** ![wienkegiezeman](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/wienkegiezeman/32/48495_2.png) [@wienkegiezeman](https://www.thethingsnetwork.org/forum/u/wienkegiezeman)\ **Post date:** [July 14, 2016, 6:34pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/29 "2016-07-14T18:34:24Z")
I really love this thread! We put it on our Twitter: > ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 14, 2016, 7:39pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/30 "2016-07-14T19:39:40Z")
[6 - motion detection DOPPLER] ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/f/fbbbbe290fdaac86dabd026e84feba4d934a8d8f.jpg) _‘china’ doppler modules_ - very sensitive, detect movement through walls and doors ! ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/3/3bef25e59464f93750e99d109b4d94e750a8dfcc.jpg) > **[4-7m Microwave Radar Sensor Switch Module LED 3-12w for Bulb Ceiling | eBay](https://www.ebay.com/itm/4-7m-Microwave-Radar-Sensor-Switch-Module-LED-3-12W-for-Bulb-Ceiling-/252431550141)** > > Find great deals for 4-7m Microwave Radar Sensor Switch Module LED 3-12w for Bulb Ceiling. Shop with confidence on eBay! > **[1PCS 5.8GHZ Microwave Radar Sensor 6-9M Smart Switch for Home/Control | eBay](https://www.ebay.com/itm/5-8GHZ-Microwave-Radar-Sensor-6-9M-Smart-Switch-for-Home-Control-/162121740359?hash=item25bf357047:g:9egAAOSwbYZXdQyX)** > > It uses Doppler radar technology. microwave sensors using planar antenna and receiving for echo. Trigger: Repeat Trigger (default);. Widely used in lighting situations,anti-theft alarm situations. sensor distance, reliability, wide angle sensor. |... _this type is good_ - [http://www.cnx-software.com/2016/04/04/tiny-microwave-radar-module-detects-movements-up-to-9-meters-away-for-2/](http://www.cnx-software.com/2016/04/04/tiny-microwave-radar-module-detects-movements-up-to-9-meters-away-for-2/) - [http://tech.scargill.net/microwave-radar/](http://tech.scargill.net/microwave-radar/) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 15, 2016, 11:18am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/31 "2016-07-15T11:18:10Z")
[16 - air quality] ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/6/65becc80da7fc3fa19250200d94f1470fc87b871.jpg) - [http://ams.com/eng/Products/Environmental-Sensors/Air-Quality-Sensors/iAQ-core-C](http://ams.com/eng/Products/Environmental-Sensors/Air-Quality-Sensors/iAQ-core-C) ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/3/39e24437ba984700ffa9a098a30e8ee061802b5e.jpg) ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/0/0a4fca1a18912beda82f2774cd424363658d2854.jpg) - [http://www.figaro.co.jp/en/product/feature/cdm7160.html](http://www.figaro.co.jp/en/product/feature/cdm7160.html) - [http://www.figaro.co.jp/en/product/docs/cdm7160\_product%20infomation(en)\_rev06.pdf](http://www.figaro.co.jp/en/product/docs/cdm7160_product%20infomation(en)_rev06.pdf) - [http://www.sensor-test.de/presse/neuheiten/fairnews/73/en](http://www.sensor-test.de/presse/neuheiten/fairnews/73/en) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 16, 2016, 10:08am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/32 "2016-07-16T10:08:20Z")
[42 - temperature switch (thermostat)] > **[KSD301 55°C / 131°F Degree Celsius N.O NO Temperature Switch Thermostat 10A 250V...](https://www.ebay.com/itm/KSD301-55-C-131-F-Degree-Celsius-N-C-Temperature-Switch-Thermostat-10A-250V-/201543905046?category=181723&buyerid=OT1C29eGPzQfsnDkNiaO4g==&emailtemplateid=114288835&sellerid=OT1C29eGPzSfgnLFGM57/A==&refid=store&ssPageName=ADME:B:SEMK:US:SHOWI)** > > 1PCS KSD301 131°F / 55°C Degree Celsius N.O. Temperature Switch Thermostat 250V 10A. It is closed until the surface reaches 55 Celsius degree, then the switch opens. Raspberry Pi. Action Temperature: 55 °C. | eBay! ---
**Author:** ![paulb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/paulb/32/44714_2.png) [@paulb](https://www.thethingsnetwork.org/forum/u/paulb)\ **Post date:** [July 17, 2016, 8:59pm UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/33 "2016-07-17T20:59:02Z")
[10 - Current] [http://www.ebay.com/sch/i.html?\_from=R40&\_trksid=p2047675.m570.l1313.TR0.TRC0.H0.Xacs712.TRS0&\_nkw=acs712&\_sacat=0](http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR0.TRC0.H0.Xacs712.TRS0&_nkw=acs712&_sacat=0) Project page: > **[ACS712 Module Measures Currents up to 30A for as Low as $1 Shipped](https://www.cnx-software.com/2016/01/23/acs712-module-measures-currents-30a-1-dollar/)** > > Usually, if I buy a high power electric appliance, I like to double check it power consumption either with a Kill-a-watt when possible, and when not, e.g. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 18, 2016, 11:16am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/34 "2016-07-18T11:16:06Z")
[42 - hall effect sensor] > **[Hall Sensor Magnetic Module Field Detecting Sensor For Arduino Smart Car | eBay](https://www.ebay.com/itm/Hall-Sensor-Magnetic-Module-Field-Detecting-Sensor-For-Arduino-Smart-Car-/311658096050?&_trksid=p2056016.m2516.l5255)** > > Hall sensor module using M44 switch. 1 x Hall sensor module. With comparator regulating Hall signal. DO, steadier Hall signal output. | eBay! - [https://en.wikipedia.org/wiki/Hall\_effect\_sensor](https://en.wikipedia.org/wiki/Hall_effect_sensor) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 27, 2016, 9:36am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/35 "2016-07-27T09:36:26Z")
[28 - wind speed / direction] ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/0/01dabb483515b527f2ebffe90b29f1650bf07a60.jpg) - [http://www.aliexpress.com/item/factory-direct-wind-sensor-0-5V-voltage-signal-wind-speed-transmitter-anemometer/32278954672.html?spm=2114.40010308.4.46.DOTGwN](http://www.aliexpress.com/item/factory-direct-wind-sensor-0-5V-voltage-signal-wind-speed-transmitter-anemometer/32278954672.html?spm=2114.40010308.4.46.DOTGwN) ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/8/8a1553e2da577bf3b16fb0dc3bead93ceff63643.jpg) - [http://www.aliexpress.com/item/1PCS-X-Wind-direction-sensor-voltage-signal-RS485-or-RS232-output-free-shipping/32345760684.html?spm=2114.40010308.4.68.3gxa3Q](http://www.aliexpress.com/item/1PCS-X-Wind-direction-sensor-voltage-signal-RS485-or-RS232-output-free-shipping/32345760684.html?spm=2114.40010308.4.68.3gxa3Q) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [July 27, 2016, 10:02am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/36 "2016-07-27T10:02:21Z")
[10 - current] [http://www.ebay.com/itm/30A-SCT-013-030-Non-invasive-AC-current-sensor-Split-Core-Current-Transformer-/141906865830?hash=item210a4eeea6:g:5T4AAOSw~OVWxUxg](http://www.ebay.com/itm/30A-SCT-013-030-Non-invasive-AC-current-sensor-Split-Core-Current-Transformer-/141906865830?hash=item210a4eeea6:g:5T4AAOSw~OVWxUxg) ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [August 1, 2016, 10:43am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/37 "2016-08-01T10:43:18Z")
[17 - CO2 level] ![](https://www.thethingsnetwork.org/forum/uploads/default/original/2X/b/be7df49fde5b6397a2b204ee32bbe3f10032464a.jpg) - [http://sandboxelectronics.com/?product=mh-z16-ndir-co2-sensor-with-i2cuart-5v3-3v-interface-for-arduinoraspeberry-pi](http://sandboxelectronics.com/?product=mh-z16-ndir-co2-sensor-with-i2cuart-5v3-3v-interface-for-arduinoraspeberry-pi) ---
**Author:** ![sam-1](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/sam-1/32/31910_2.png) [@sam-1](https://www.thethingsnetwork.org/forum/u/sam-1)\ **Post date:** [August 1, 2016, 11:18am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/38 "2016-08-01T11:18:36Z")
In commercial aquaponics/ aquaculture Ph/ Temp as above Plus [Water level monitoring](https://digitalmeans.co.uk/shop/8inch_etape_liquid_level_sensor?search=fluid%20level&description=true) [Conductivity](https://makersify.com/products/dfrobot-analog-electrical-conductivity-meter-with-temperature-compensation) (& [probe](http://www.ebay.co.uk/itm/208DH-Conductivity-COND-EC-electrode-Conductivity-sensor-probe-BNC-connector-/141591951248?_trksid=p2141725.m3641.l6368)) [Dissolved Oxygen](https://digitalmeans.co.uk/shop/atlas_scientific-dissolved_oxygen_sensor_probe?search=temperature%20atlas&description=true) [Nitrate](http://www.vernier.com/products/sensors/ion-selective-electrodes/no3-bta/) You wouldn’t bother for a small system, but commercial scale it starts to make sense. This is [a board](http://www.kijanigrows.com/purchase-v2-smart-controller/) i’ll be playing with in a couple of weeks. I’ll be on Wifi, but Lora might be possible? ---
**Author:** ![sam-1](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/sam-1/32/31910_2.png) [@sam-1](https://www.thethingsnetwork.org/forum/u/sam-1)\ **Post date:** [August 1, 2016, 11:25am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/39 "2016-08-01T11:25:49Z")
In [‘smart’ beehives](http://docs.opensourcebeehives.net/docs/alpha-sensor-kit) Temp as above Plus humidity. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [August 1, 2016, 11:34am UTC](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600/40 "2016-08-01T11:34:02Z")
[43 - conductivity] > **[208DH Conductivity COND. EC electrode, Conductivity sensor probe BNC connector ...](https://www.ebay.co.uk/itm/208DH-Conductivity-COND-EC-electrode-Conductivity-sensor-probe-BNC-connector-/141591951248?_trksid=p2141725.m3641.l6368)** > > It does not output electrical signal. The electrode does not play this role. Connection: with BNC socket. Resolution:1us, 0.1mS. Cable Length: 300cm long. | eBay! [Previous page](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600.md?page=1) [Next page](https://www.thethingsnetwork.org/forum/t/big-diy-sensor-topic/2600.md?page=3)