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Introducing the BMP180 barometric sensor

This post is about how to use the BMP180 barometric sensor with the Arduino. It is also applicable for other similar barometric sensors. Introducing the BMP180 barometric sensor The BMP180 barometric sensor (model GY-68) is the one in  the following figure (front and back view). It is a very small module with 1mm x 1.1mm (0.039in x 0.043in).   RELATED CONTENT: Like ESP8266? Check out Home Automation Us ...

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Basic User’s Experiment Notes

The “Basic User’s Experiment Note” is based on the popular 8-bit Atmel AVR ATmega328P microcontroller using AVRJazz 28PIN development board. This e-book covering most of the Atmel AVR ATmega328P microcontroller important features. With almost 140 pages, this e-book is organized similar to many of the ermicroblog’s project pages where it used many important information inside the Atmel AVR ATmega328P microco ...

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A dual sensor fan controller build

A while back, I added a fan controller to my Topward 6603A power supply. Later on, when I bought a used programmable power supply (PPS-2322) I had to do the same thing. Both of those builds were done on protoboards but I had a feeling that many of my other projects could use a similarly designed fan controller as well. So I thought why not just have the PCB professionally made? The schematics I designed for ...

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Save Your Food with Arduino Freezer Temperature Sensor

“Arduino Freezer Temperature Sensor” is an Arduino based project which works as an indicator to notify you when the freezer isn’t work properly. This project was created by “John Saunders”. To make this project, you will need these parts: Arduino Nano, most of other Arduino boards can be used. USB cable, to connect the Arduino to the computer. Power Adapter, with 5V DC output. Temperature Sensor, TMP36. A p ...

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Wireless temperature and humidity monitor for baby’s room

This project describes a DIY wireless temperature and humidity monitor for kids’ or infant’s room using the Arduino platform, and inexpensive and easily available ASK transmitter/receiver modules. On the transmitting end, an Arduino nano senses the ambient room temperature and humidity using the DHT22 sensor and transmits the data to a receiving end Arduino over a 433 MHz ASK RF link. The receiving side Ard ...

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Atmel SAMD21G Sensor Board

Mike Rankin created this tiny sensor board with an ARM Cortex M0+ microcontroller and OLED display: 0miker0’s Blog: SAMD21G Sensor Board It’s pretty tiny so a 4 layer board made the whole job easier. The top and bottom are pretty much dedicated for components, layer1 are tracks and power traces, layer2 is a ground plane. Mixing up an internal plane and routing layer was interesting. The hardware consists of ...

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Make your own remote temperature/humidity sensor

Hardware components: Atmel atmega 328p-pu × 1 ControlEverything.com SI7020-A20 I²C Humidity and Temperature Sensor ±4%RH ±.4°C × 1 433 MHz transmitter / Receiver kit × 1 AMS1117-ADJ voltage regulator × 1 Capacitor 100 µF × 1 Capacitor 100 nF × 1 Resistor 1k ohm × 1 Resistor 10k ohm × 1 LED (generic) optional × 2 Resistor 221 ohm optional × 2 UDOO 2AA Battery Holder for RTC × 1 Software apps and online servi ...

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