It's a way to bring creative projects to life. News, Tutorials, Reviews, and How-Tos related to Embedded Linux and Android, Raspberry Pi, Arduino, ESP8266, Development Boards, SBC's, TV Boxes, Mini PCs, etc.. Sequent Microsystems like to make stackable Raspberry Pi HATs. Kürzlich kam die Idee auf, dass es doch möglich sein muss, drahtlose Sensoren die auf 433 MHz senden die Daten direkt in Klartext auszulesen. An den Ausgängen können Aktoren, wie z. But opting out of some of these cookies may affect your browsing experience. 24 Bit ΣΔ A2D converter ADS1248. The process image (PA) then contains the temperature values of the two measuring inputs in the unit 1/10 °C. PLEASE NOTE! If you haven’t heard about this type of temperature sensors, we wrote a post explaining the advantages and drawbacks of resistance temperature detectors last year.

Zudem besitzt das analoge I/O-Modul eine UL-Zertifizierung (UL-File-Nr. The supply line therefore has 4 wires (usually 2 x red and 2 x white). Class A (-50 to 250°C scope)  permits a limit deviation of 0.1 + 0.0017 * T. At 0°C this means a maximum deviation of 0.1 °C and at 200°C the deviation is already 0.44 °C. Necessary cookies are absolutely essential for the website to function properly.

Command line and Python drivers. Wenn Ihr RTD-Verstärker 3-Draht-Sensoren unterstützt, treibt er den Widerstand mit den ersten beiden Drähten und misst die Spannungsunterschiede, so dass er jeden Spannungsabfall von den Drähten subtrahieren kann.
There’s also a user guide but shared in an “interesting” way as you have to go through a checkout process to order the free e-book. Die Inbetriebnahme zeige ich in diesem Tutorial. The voltage at the platinum resistance is measured via the other two lines using a very high-resistance measuring method. Präziser Temperatur Sensor: Usable temperature range: -200 to 550°C (-328°F to +1,022°F) The 3rd.

However, these modules can not measure additional information such as humidity and / or air pressure. Stromstärke eingestellt werden: Der RevPi AIO verfügt über 4 analogen Eingänge, die mit einem 24 Bit ΔΣ AD-Wandler ausgestattet sind. If you don`t get any confirmation email, it may be in your Junk or Spam mailbox.

Bitte beachte die automatische Bestätigungsmail in deinem Postfach, nachdem Du dich zum Newsletter angemeldest hast. Die Eingänge, Ausgänge und RTD-Eingänge sind voneinander und gegenüber dem Logikteil galvanisch getrennt. Using an electronic trick, the voltage drop across the shared line can be compensated and does not interfere with voltage measurement over the platinum resistor. The RevPi AIO module has 2 measuring inputs for platinum resistance thermometers (RTD, Pt100/Pt1000).

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