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  • Espruino LM35 temperature sensor example

    by shedboy71 14th October 2016

    In this example we will connect an LM35 temperature sensor to our Espruino The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius …

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  • Espruino and an MCP9808 digital temperature sensor

    by shedboy71 14th October 2016

    MCP9808 digital temperature sensor example The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.5°C (max.) accuracy. The MCP9808 comes with user-programmable registers …

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  • More Espruino 7 Segment display examples

    by shedboy71 13th October 2016

    In a previous post we showed how to connect a MAX 7219  7 Segment display – Espruino and MAX7219 7 segment display example . Here are some more examples Counter example This …

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  • Espruino and MAX7219 7 segment display example

    by shedboy71 13th October 2016

    The MAX7219  is a compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included …

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  • Espruino ultrasonic tape measure

    by shedboy71 11th October 2016

    In the previous example using an HC-SRO4 ultrasonic sensor – Espruino and an ultrasonic distance sensor, we looked at displaying the distance to an object but just displayed this on the …

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  • Espruino and an ultrasonic distance sensor

    by shedboy71 10th October 2016

    The HC-SR04 is used to measure distances by using ultrasonic sounds. It works by sending out a burst of ultrasound and listening for the echo when it bounces off of …

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  • Espruino and DS18B20 temperature sensor

    by shedboy71 3rd October 2016

    The DS18B20 is a  temperature sensor that can be used in various simple projects.  This part uses the 1 wire  bus and you can connect multiple sensors up to your Espruino. …

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  • MBed and a PCF8574

    by shedboy71 11th September 2016

    The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and SCL pins of your Arduino board …

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  • LPC1768 and MLX90614 infrared thermometer

    by shedboy71 10th September 2016

    The MLX90614 is a non-contact infrared thermometer with a measurement range from -70 to +380 degree Celsius. Just connect the four leads to your MBed supported device and you will have …

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  • MBed LPC1768 and ADXL345 GY-291 example

    by shedboy71 10th September 2016

    The ADXL345 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. Digital output data is formatted as 16-bit twos complement and is …

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  • Espruino Pico and DHT22 example

    by shedboy71 7th August 2016

    In this example we use the DHT22 (or AM2302) humidity/temperature sensor and the Arduino UNO board to read data and print it out to the serial monitor. The DHT22 is better …

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  • Espruino Pico and LDR example

    by shedboy71 7th August 2016

    A light-dependent resistor is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied …

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