{"product_id":"cwx","title":"CWX","description":"\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003c\/div\u003e\n\u003cp class=\"heading-element\" dir=\"auto\" tabindex=\"-1\"\u003e\u003cstrong\u003eCWX \u003c\/strong\u003eis a STEM based Compact IoT Weather Station.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003ePowered by a single CR123 Lithium battery, or external DC power, this NEW CWX-3-BME280 Board is a Compact Weather Station for IoT Home Automation, providing:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eBarometric Pressure\u003c\/li\u003e\n\u003cli\u003eAmbient Temperature\u003c\/li\u003e\n\u003cli\u003eHumidity\u003c\/li\u003e\n\u003cli\u003eAmbient Light Level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eThe New CWX V3 features the following Top Level Improvements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eNew ESP32-C3 MCU (replacing the ESP8266\/ESP12S)\u003c\/li\u003e\n\u003cli\u003eType C USB Interface\u003c\/li\u003e\n\u003cli\u003eImproved LDO Current assisting any External Devices On-Board\u003c\/li\u003e\n\u003cli\u003eESP32-C3 D1 UART Interface On-Board\u003c\/li\u003e\n\u003cli\u003eEEPROM for Data Logging and Configuration\u003c\/li\u003e\n\u003cli\u003eUser Button\u003c\/li\u003e\n\u003cli\u003eRGB LED\u003c\/li\u003e\n\u003cli\u003eDallas OneWire Interface (for external temperature sensors and probes)\u003c\/li\u003e\n\u003cli\u003eI2C External Interface Improved\u003c\/li\u003e\n\u003cli\u003eAmbient Light Sensor\u003c\/li\u003e\n\u003cli\u003eOn-Board 32.768 kHz XTAL for Real Time Clock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eCWX3 Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBased on the new Espressif ESP32C3 Mini, which has both Wi-Fi and BT, the CWX3 SDK board is provided with onboard Battery Holder or External DC Input.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eInterface for programming, and development, is thought a standard Type C USB, into the onboard UART and ESP32C3, so making development and use, completely self-contained.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUsing the provided I2C interface, an OLED display can be plugged directly into the board, if required, for local monitoring and status information.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eOpensource CWX Firmware is provided on our GitHub, using the standard Platform IO platform. This monitors Barometric Pressure, Temperature, Humidity, Light Level and CO2 Air Quality information, which can then be sent to your Home Automation, or cloud service, via provided MQTT or Domoticz etc., as standard.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eCWX Specification and Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensors Included\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eHigh Accuracy Barometric Sensor\u003c\/strong\u003e - Bosch BME 280 Module, providing: -\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarometric Pressure\u003c\/strong\u003e 300...1100 hPa (millibar) - Accuracy ±0.25% - which is equivalent to 1m at 400m height change - RMS Noise 0.2 Pa - which is equivalent to 1.7 cm -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature\u003c\/strong\u003e -40 to 85°C - Temperature coefficient offset ±1.5Pa\/K. - which is equivalent to ±12.6cm at 1 °C temperature change -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity\u003c\/strong\u003e - 0 to 100 % - Accuracy tolerance ±3% relative humidity - Hysteresis ≤2% relative humidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAmbient Light Sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eSFH2440, providing spectral sensitivity adapted to human eye sensitivity\u003c\/li\u003e\n\u003cli\u003eStd. Light A; T = 2856 K Minimum 7 nA\/lx\u003c\/li\u003e\n\u003cli\u003eSpectral range of sensitivity λ10% typically 400 to 690 nm\u003c\/li\u003e\n\u003cli\u003eWavelength of max sensitivity λS max typically 620 nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCU\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eEspressif ESP32-C3 Mini\u003c\/strong\u003e - 2.4GHz Wi-Fi (802.11b\/g\/n) and Bluetooth 5\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eESP32-C3-MINI-1-N4 \u003cem\u003e(PCB Antenna)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eESP32-C3-MINI-1U-N4 \u003cem\u003e(External Antenna via U. FL cable)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eOn-Board 32.768 kHz XTAL for Real Time Clock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C Programming \/ Debug\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eType C USB Connector\u003c\/li\u003e\n\u003cli\u003eCH340K USB UART 2Mbps Transceiver\u003c\/li\u003e\n\u003cli\u003eEasy programming. Select ‘ESP32C3 Dev Module’\u003c\/li\u003e\n\u003cli\u003eBAUD rate up to 921600 to speed up Flashing\u003c\/li\u003e\n\u003cli\u003eSerial Monitoring Debug and Remote Logging\u003c\/li\u003e\n\u003cli\u003ePower Can Be Taken from USB 5V (when Flashing).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEEPROM (I2C)\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eAT24C64 64Kbit\u003c\/li\u003e\n\u003cli\u003eOn-board Data Logging\u003c\/li\u003e\n\u003cli\u003eOn-board Parameters\u003c\/li\u003e\n\u003cli\u003eFirmware setup user parameters and configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery or External DC Operation\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePowered by:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e1 x \u003cstrong\u003eCR123\u003c\/strong\u003e Lithium battery\u003c\/li\u003e\n\u003cli\u003eExternal DC such as USB 5V or 4.5 to 15V DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Voltage Monitor\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eADC provides battery voltage reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal DC Input\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eAMS1117 LDO allowing use of external DC input 4.5V to 15V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Temperature\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eDallas OneWire Interface for External Temperatures\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eExample Probe Sensor for Greenhouse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRGB LED - Status\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eConfigured to three GPIO’s for easy Firmware control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI2C OLED Connector\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eConfigurable 3V3 Pin 1 and 2 polarities\u003c\/li\u003e\n\u003cli\u003ePCB 4 Pin Header Connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButtons\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eReset\u003c\/li\u003e\n\u003cli\u003eUser (Program or GP9 Detect)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eDesigned to fit into a Waterproof Clear Cover Enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design and Easy to Use\u003c\/strong\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eCompact PCB 63mm x 51mm\u003c\/li\u003e\n\u003cli\u003e4 x M3 mounting holes\u003c\/li\u003e\n\u003cli\u003eOperating Ambient Temperature -10 to +60 °C\u003c\/li\u003e\n\u003cli\u003eOptional Conformal Coating – on request.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTags: BME280, ESP32C3, SFH2440, Home Automation, Humidity, IoT, Light, Pressure, Remote Monitoring, SDK, STEM, Temperature, Domoticz, Home Assistant, ThingSpeak, Weather Station, Weather System\u003c\/p\u003e\n\u003cp\u003eFurther information maybe found on the GitHub pages \u003ca href=\"https:\/\/github.com\/DitroniX\/CWX-Compact-Weather-Station\"\u003ehttps:\/\/github.com\/DitroniX\/CWX-Compact-Weather-Station\u003c\/a\u003e and also \u003ca href=\"https:\/\/www.hackster.io\/DitroniX\/cwx-esp32-c3-portable-compact-weather-station-b04172\"\u003ehttps:\/\/www.hackster.io\/DitroniX\/cwx-esp32-c3-portable-compact-weather-station-b04172\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eOptions\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eClear Top Waterproof Enclosure\u003c\/p\u003e","brand":"DitroniX","offers":[{"title":"Default Title","offer_id":53391132328264,"sku":"CWX3","price":32.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8507\/9368\/files\/cwx-1105315.jpg?v=1782753752","url":"https:\/\/ditronix.net\/products\/cwx","provider":"DitroniX","version":"1.0","type":"link"}