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Arduino

Complete (soft of) explaination on Interrupt (IMR) usage of Ethernet Shield

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Written by: Mr Garage
Category: ARDUINO
Published: 25 July 2014
Hits: 7907

It took about few weeks for to understand (hard way) the application of Interrupt in Ethernet Shield. There is no complete explanation or manual in the internet could be found. Anybody (including me) who were trying to search how to write the arduino sketch and make interrupt works will find a partial explanation in forum.

As I discovered the way how to make interrupt work in Ethenet Sheild, I think people out there maybe has the same difficulty like me. So, I try my best to explain it all (hopefully) and make everybody understand.

Read more: Complete (soft of) explaination on Interrupt (IMR) usage of Ethernet Shield

Arduino Pro Mini + DHT11 (temp & hum sensor) + XBee

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Written by: Mr Garage
Category: ARDUINO
Published: 28 August 2013
Hits: 5133

Sesiapa yang ada baca Arduino Pro Mini bersama DHT11, adalah agak bangang sebenarnya projek ni. Arduino Pro Mini sambung Arduino Uno untuk baca parameter DHT11? Sepatutnya, Arduino Pro Mini berfungsi secara sendiri tanpa bantuan alatan tambahan. Arduino Uno hanya berfungsi sekali untuk memuat naik sketch sahaja.

Read more: Arduino Pro Mini + DHT11 (temp & hum sensor) + XBee

Memprogram Arduino Pro Mini menggunakan Arduino Uno

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Written by: Mr Garage
Category: ARDUINO
Published: 20 August 2013
Hits: 6816

Memprogram (upload - membeban atas) Arduino Pro Mini menggunakan Arduino biasa (Uno dan seangkatannya).

Selepas banyak kali guna Arduino yang biasa, kita belajar pula menggunakan Arduino yang lebih kecil dan murah.

 

Ada banyak jenis Arduino kecil dan murah. Tetapi kita mulakan dengan Arduino Pro Mini. Arduino jenis ini didatangkan sebesar ibu jari, menggunakan ATMega328, ada sambungan terus ke permukaan sesiri (serial UART), beberapa input output digital dan analog tetapi agak kurang serta tidak disertakan permukaan USB.

Ketiadaan permukaan USB ini menyukarkan arduino ini bersambung ke PC dan menerima program yang kita tulis.

Read more: Memprogram Arduino Pro Mini menggunakan Arduino Uno

Arduino IDE versi 1.*

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Category: ARDUINO
Published: 11 August 2012
Hits: 3938

Semasa aplikasi arduino ditambahbaik sehingga versi 1.0, aku masih lagi guna versi 0.23. Ini kerana terdapat isu di mana versi 1.0 mempunyai masalah pada beberapa library. Library ini perlu ditulis semula supaya dapat digunakan. Ini melambatkan kerja aku. Maka, aku tangguhkan dahulu.

Sehinggalah aku terpaksa bertukar ke versi baru kerana didapati versi lama mempunyai masalah slow respond semasa digunakan. Terpaksalah salin semua library dari versi lama 0.23 ke versi 1.0.1 (terkini). Tetapi library asas yang telah ada di versi baru tidak disalin bersama.

Read more: Arduino IDE versi 1.*

Temperature and Humidity Monitor - revision.

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Category: ARDUINO
Published: 22 May 2012
Hits: 3611

I like to make a revision on Temperature and Humidity Monitor. After a few test, I found few flaw in the article.

First of all, the diagram. For the SD reader part, I not connect any connection to the second GND pin. Whenever, you try to power up to Arduino and monitor the output in serial terminal, arduino can not detect any SD card.

So, the correct connection is to connect all GND pins to GND.

Secondly, the output in CSV file. There is no separation between temperature and humidity reading. So, below is the correct one. I put comma between them.

I got a new project to monitor temperature and humidity 24/7. So, I set logging delay to 5 minutes, where 5 * 60 * 1000 = 300000. (1sec = 1000). At this part, i put the delay value straight to the function delay() and not the integer variable as before.

Read more: Temperature and Humidity Monitor - revision.

  1. Temperature & Humidity monitor.
  2. Voltage reader
  3. Arduino solar powered system
  4. Date as a File Name - YYYYMMDD.CSV

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