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Please note this sensor, like all VOC/gas sensors, has variability and to get precise measurements you will want to calibrate it against known sources! That said, for general environmental sensors, it will give you a good idea of trends and comparisons. Note it will give you one resistance value, with overall VOC content, but it cannot differentiate gasses or alcohols. The heated metal oxide changes resistance based on the volatile organic compounds (VOC) in the air, so it can be used to detect gasses & alcohols such as Ethanol, Alcohol and Carbon Monoxide, and perform air quality measurements. The BME680 takes those sensors to the next step in that it contains a small MOX sensor. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ☑ meter or better accuracy! Like the BME280 & BMP280, this precision sensor from Bosch can measure humidity with ☓% accuracy, barometric pressure with ☑ hPa absolute accuracy, and temperature with ☑.0☌ accuracy. This little sensor contains temperature, humidity, barometric pressure, and VOC gas sensing capabilities. The long awaited BME680 from Bosch gives you all the environmental sensing you want in one small package. Based on HM-TRP radio modules, with Si1000 8051 micro-controller and Si4432 radio module Resources Adaptive flow control when used with APM RT commands for remote radio configuration Can be used with a bi-directional amplifier for even more range Demonstrated range of several kilometers with a small omni antenna
3DR LIVEVIEW KIT CODE
Built in error correcting code (can correct up to 25% data bit errors) Adaptive time division multiplexing (TDM) Frequency hopping spread spectrum (FHSS) MAVLink protocol framing and status reporting Transmit power up to 20dBm (100mW / 250mW) Light weight (under 4 grams without antenna) Configuration is also possible through AT commands. Firmware upgrades and configuration are fully supported in the APM Mission Planner.
3DR LIVEVIEW KIT SERIAL
The SiK firmware includes a bootloader that permits radio firmware upgrades over the serial interface, and radio firmware with configurable parameters. The radio is a 2-way half-duplex wireless communication system with a standard TTL UART interface, based on HopeRF's HM-TRP data link modules, and custom firmware that improves upon the modules' original features and performance. It's availabl in 915Mhz and in the following configurations: serial board (for the air) and USB (for the ground). The 3DR Radio telemetry system is designed as an open source Xbee replacement radio set, offering a lower price, longer range and superior performance to Xbee radios. I preprogram these radios to the correct bod rate so you can just connect them to your quadrino and start chaning PID's on the fly. Antenna is 5.8G level ,not the cheap 2.4G level (whose range is very small and material is very cheap) like others.
3DR LIVEVIEW KIT ANDROID
Support OTG of Android Cellphones,and computer OTG.