Editor Version ×
Standard

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators

Profession

1.Brand new interactions and interfaces

2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std EditionNettigo Air Monitor HECA (Heating Element Control Assembly)

License: TAPR Open Hardware License

Published Time:2018-12-04 20:37:58
  • 2.2k
  • 0
  • 0
Description

PTC Heating Element Control

In this design we used precise temperature and humidity sensor from Sensirion: SHT30 or SHT31 connected via I2C. Sensors are equipped with ALERT output. This output is connected to N-channel MOSFET and controls PTC Heating Element. Huge advantage of this design is ALERT logic which can be programmed via I2C and it's independent from main micro controller. In other words apart of sensor initialization it doesn't require any action from main micro controller.

Usage

  • PTC Heating element connect to connector marked as PTC HE (from SHT side)
  • I2C cable connect to SCL, SDA, 3V3 and GND
  • Heating element power supply connect to PTC and GND. PTC is positive terminal. Heating element supports from 5V to 12V.
  • I2C address is set to 0x44 permanently. On this board layout this address can not be changed. Track between SHT address pin is connected to GND directly under sensor chip itself.

Project support

If you would like to support this project consider buying assembled module form Nettigo.pl or Nettigo.eu.

License

  • This project is licensed under TAPR Open Hardware License.
  • Project author: Krzysztof Daszuta (Nettigo.pl)
  • Project founder: Witold Rugowski (Nettigo.pl)
Documents

Nettigo Air Monitor HECA

Open in editor

Nettigo Air Monitor HECA 0.1.0 (D30)

Open in editor

Nettigo Air Monitor HECA 0.1.1 (D29)

Open in editor

Nettigo Air Monitor HECA 0.1.2 (D29)

Open in editor

Nettigo Air Monitor HECA 0.1.3 (D29)

Open in editor
Project Attachments
Empty
Project Members

服务时间

周一至周五 9:00~18:00
  • 0755 - 2382 4495
  • 153 6159 2675

服务时间

周一至周五 9:00~18:00
  • 立创EDA微信号

    easyeda

  • QQ交流群

    664186054

  • 立创EDA公众号

    lceda-cn