{"id":18245,"date":"2020-01-28T10:07:46","date_gmt":"2020-01-28T08:34:25","guid":{"rendered":"https:\/\/www.challenge-agriculture.fr\/?post_type=product&p=18245"},"modified":"2021-04-22T18:38:08","modified_gmt":"2021-04-22T16:38:08","slug":"spuc-watermark-sensor-mkr-arduino-iot","status":"publish","type":"product","link":"https:\/\/dev.challenge-agriculture.fr\/en\/product\/makers-space\/spuc-watermark-sensor-mkr-arduino-iot\/","title":{"rendered":"SPUC (WATERMARK sensor)+MKR ARDUINO = IoT"},"content":{"rendered":"

\"\"<\/p>\n

This solution IoT, is obtained with this new board named “SPUC”, reading 4 Watermark sensors, on 1 measuring site<\/h2>\n

The SPUC easily connects to Arduino<\/strong> transmitting boards :\u00a0 MKR GSM<\/strong>, LoRa and SigFox. Agronomic reminder : a minimum of 3 sites is required per field for irrigation management<\/strong>, to adress the heterogeneity of water in irrigated soils.<\/p>\n

Learn more about Watermark sensors <\/a><\/p>\n

Caracteristics\u202f:<\/h3>\n
    \n
  • 1 input for temperature sensor.<\/li>\n
  • 4 inputs for Watermark sensors.<\/li>\n
  • 1 input for external battery 5V to 12V.<\/li>\n
  • UART serial communication.<\/li>\n
  • Consumption of 800\u00b5A max, while reading sensors.<\/li>\n
  • Automatic\u00a0 sleep mode, consuming 20\u00b5A.<\/li>\n<\/ul>\n

    Agronomic reminder : a minimum of 3 sites is required per field for irrigaion management<\/strong>, to adress the heterogeneity of water in irrigated soils.<\/p>\n


    \n<\/strong>SPUC interfacing with Arduino
    \n<\/strong><\/h3>\n

    SPUC is designed to plug directly the Arduino<\/strong> MKR boards, such as MKR WiFi 1010, MKR GSM 1400, MKR WAN 1300 (LoRa) and MKR FOX 1200.<\/p>\n

    \"\"<\/p>\n

    The UART port, fonctionning beetween 3.3V and 5V, allows compatibility with many Iot solutions on the market.<\/p>\n

    Power supply<\/h3>\n

    SPUC<\/strong> is directly powered by its mother board, for example by the Arduino MKR<\/strong> board, or other IoT solutions, beetween 3.3V and 5V.<\/p>\n

    A power supply connector allows an external battery to power both SPUC + Arduino MKR.<\/p>\n

    \"\"<\/p>\n

    UART settings, to comunicate with SPUC :<\/h3>\n
      \n
    • 2400 bauds<\/li>\n
    • 8 bits of data<\/li>\n
    • no parity bit<\/li>\n
    • 1 stop bit<\/li>\n
    • no flow control<\/li>\n<\/ul>\n


      \nReading sensors
      \n<\/strong><\/h3>\n

      The mother board must send a command \u2018s\u2019 (snapshot).<\/p>\n

      SPUC answers in hexadecimal\u00a0 : 0001,FE,2480,03A6,FFFE,FFFE<\/p>\n

      First is ID, second is soil temperature in Fahrenheit, then 4\u00a0 Watermark sensors<\/strong> in Ohms.<\/p>\n

      Those values are easily convertible in other units. Examples are given in our tuto.<\/p>\n","protected":false},"excerpt":{"rendered":"

      This IoT solution<\/strong> is obtained with this new board named “SPUC”, reading Watermark sensors<\/strong>, connected to Arduino<\/strong> transmitting boards :\u00a0 MKR GSM, LoRa and SigFox.<\/p>\n","protected":false},"featured_media":17412,"template":"","meta":{"_acf_changed":false},"product_cat":[1219],"product_tag":[],"acf":[],"yoast_head":"\nProducts : SPUC and MKR Arduino - Challenge agriculture<\/title>\n<meta name=\"description\" content=\"Products : SPUC and MKR Arduino. 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