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This is the first populated board of my wireless temperature/humidity sensors. This board is populated with a 2.4 GHz radio but most will have 433 MHz radios. The good thing about using Anaren AIR series is they are mostly footprint compatible. The diode in series with the battery is giving me problems but I can always just use 0R jumpers if it can't be fixed.
I don't know why I never noticed this before, but my pitch calculations are way off. They're delayed by a good couple of seconds and what's worse, they reverse for the first second. This means that when it pitches forward, the copter actually thinks it's pitching backwards (and then it flips).
Roll is fine, making it even more confusing. It's the same sensors and math, just different axis.
The IMU data is what I actually use -- it's a combination of the gyro and accel data.
e2v, empresa representada en España por Anatronic, S.A., anuncia la disponibilidad del RPIC1.2, un circuito integrado interface (RPIC) de sensor resistivo que se caracteriza por su elevada resolución, bajo ruido y elevada estabilidad.
El RPIC1.2 forma parte de la familia IC de e2V para medida de alta resolución de elementos resistivos, como sensores para la medición de, por ejemplo, presión altitud, humedad, deformación, ángulo, nivel de lÃquido o concentración de gas.
Este IC es ideal para aplicaciones que requieren dos canales, como es el caso de sensores de humedad, donde la calibración necesita un canal extra para la temperatura.
El RPIC1.2 ofrece dos canales de preamplificador ‘auto-zero’ con ‘offset drift’ superior a 1 V / °C, un convertidor sigma delta de 16 bit y alta resolución con ratio de datos de salida de 8 kHz, y nivel mÃnimo de ruido de 6 V (con ancho de banda de 4 kHz).
El nuevo RPIC también se distingue por una salida UART digital para ambos canales, uno de los cuales puede tener salida usando un DAC de 14 bit, EEPROM embebida para almacenamiento de parámetros de usuario, interface (I2C) de microcontrolador fácil de usar y amplio rango de temperatura operativa de -40 a +150 °C.
Como el resto de modelos del catálogo de e2v y Anatronic, este circuito integrado es una solución front-end analógica state-of-the-art que contiene toda la IP requerida para ofrecer interconexión con un gran número de transductores (capacitivos, resistivos y ópticos).
El RPIC1.2 se encuentra disponible como dispositivo autónomo o incluido en una placa hija para uso inmediato con el kit de desarrollo ASIC de señal mixta CAPRI2 de e2v. Este kit también integra una placa madre con un FPGA para el desarrollo del elemento digital de futuros ASIC de señal mixta. Por consiguiente, obtener un ASIC o ASSP de esta plataforma es rápido y directo.
A single built in sensor is in the middle of the box. It is behind the small hole. The other hole is a jack for a plug in dual sensor module.
This is a change from the earlier pictures I posted. I have decided that the only way to properly test 35mm SLR film planes is with dual sensors spaced appropriately.
The almost finished box. There is already a webcam in there together with 3x 6.8ohm resistors and a 20V AC power feed (20W total heating) and a PC power supply fan at 9V as a demister circuit but this is on a timer and ambient temp control.
The solar sensor board is mounted now, a strip connector for the signal wires to the lamp bulb fitting. The bulb on top also got an upturned glass jar with a plastic lid that was sealed to the top of the box as a weather seal.
If we learned anything at CES this past January, it’s that sensors are pervasive in every new cool tech getting to market these days. And health is definitely leading the way in this sensor proliferation. Constant tracking and monitoring through interconnected devices opens up unlimited possibilities for disease management and prevention leading up to new and remarkable business opportunities. Get the ins-and-outs of how these sensors can play to both individuals and enterprises and what companies are now doing with all of this data.
Steve Kovsky, Senior Manager Digital Content, Websense @skovsky
Christine Robins, CEO, BodyMedia @bodymedia
Aidan Petrie, Co-Founder and Chief Innovation Officer, Ximedica @Ximedica
Steve Zadig, Co-founder and COO,VitalConnect @vital_connect
Chris Holbert, CEO, SecuraTrac @SecuraTrac
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After I clean my sensor with a cleaning kit, I go outside and find a cloud-less part of sky and shoot it with a small aperture opening, slightly underexposed. If you see no dark smudges your cleaning was successful.
IMG_9362
I started getting a little cold lying the snow trying to get this shot just right. It didn't help that my image sensor got all dirty.
... and I cropped out the worst ones.
I liked this photo too much not to post it. Someday when I have more time, I'll remove the sensor dust.
Finished the temperature sensors which I now have around the house. Used a #protoshield for the #Wemos D1 mini with the #DS18B20 digital temperature sensor. Power is supplied via a #powerbank which has two 18650 Li-ion batteries recovered from an old laptop battery. With the Wemos in sleep mode most of the time and waking every 10 minutes to do the measurement and then going back to sleep, I get about 18 days battery life. I originally tried a Xiaomi powerbank, but because the current draw of the Wemos was so low when in sleep mode, the powerbank would think there was no load and turn off, therefore not allowing the Wemos to wake up! Ended up getting some battery holder/charger from eBay and they work a treat. Also needed to solder a resistor between D0 and the reset pin to enable the waking from sleep.
For the reporting/graphing, you can see the graph works for one channel, but I couldn't work out how to get multiple channels on one chart. Did some googling and came across a solution that uses HTML, JS and the Highstock charts, which after updating a couple of details to use my #thingspeak channels, it was running!
Many thanks to the following people for sharing their code to make this project possible for me.
Miika Pietila for the code for the Wemos: vaasa.hacklab.fi/2016/02/06/esp8266-on-nodemcu-board-ds18...
Jerome Bernard for the sleep code for the Wemos:
www.jerome-bernard.com/blog/2015/10/04/wifi-temperature-s...
turgo for the multiple channel charts:
forum.arduino.cc/index.php?topic=213058.0
#iot #esp8266 #electronics
P_P6252723
Canon G7 Sensor Exposed
Here a picture of what the image sensor looks like in a Canon G7 point & shoot camera. The sensor is the small purple & blue window just to the right of center of the image and held back with tape. It is normally mounted in the center of the camera where there is a little green window which is the IR blocking filter.
As grand as the images would come from this tiny sensor, I no doubtly miss using my ZN5! It has long been damaged beyond repair and I decided to extract the sensor from the sugar cube sized camera inside. It's very hard to read without some heavy magnification, but the name or part number as it appears etched on the back reads H88MC YRMJ.