EnginBilgi

The Isımatik V2.0 is a versatile and cost-effective IoT sensor hub designed for precise environmental data acquisition and remote monitoring applications. It is optimized for battery-powered operation and supports a wide range of sensors and digital inputs.

Key Features:

• Multi-Sensor Support: Designed primarily for temperature and humidity tracking using industry-standard I²C or analog sensors.
• Digital Input Channels: Includes multiple switch inputs for detecting door status, mechanical triggers, or custom logic events.
• Low-Power Design: Ideal for long-term field deployment using AAA battery banks or custom power configurations.
• Compact, Modular Layout: Optimized for enclosure integration in industrial, agricultural, and logistics environments.
• Expandable Communication: Easily pairs with external RF, LoRa, or cellular modules via breakout headers.

This board is ideal for use in warehouses, cold chain logistics, smart agriculture, and industrial monitoring systems. Custom firmware and enclosure options are available upon request.

Developed by Engin Yeğnidemir
yegnidemir.net | sega.com.tr

The Izmatik Takip V2.0 is a compact, highly integrated PCB designed for advanced asset tracking applications. Engineered for reliability and low power consumption, it combines GPS and GSM modules with intelligent power management to enable real-time location monitoring even in challenging environments.

Key Features:

• Integrated GPS Antenna: High-sensitivity tracking for accurate positioning.
• GSM Connectivity: Supports SMS and GPRS data for remote updates and alerts.
• Power Management Circuitry: Strong power noise reduction and backup battery.
• Compact Form Factor: Fits easily into custom enclosures for industrial or mobile use.
• Modular Interface: Expandable design for additional sensors or wireless protocols.

This board is ideal for fleet management, equipment tracking, mobile asset security, and IoT applications requiring reliable geolocation capabilities. Custom firmware and enclosure designs are available upon request.

Designed and manufactured by Engin Yeğnidemir
yegnidemir.net | izmatik.com.tr

8×64 LED Display

This LED display allows you to send text from your mobile phone via Bluetooth. It’s ideal for placing in a shop window or displaying messages to drivers behind you in traffic.

Demo Video:

The Code:

#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Max72xxPanel.h>

int pinCS = 10; // Attach CS to this pin, DIN to MOSI and CLK to SCK (cf http://arduino.cc/en/Reference/SPI )
int numberOfHorizontalDisplays = 1;
int numberOfVerticalDisplays = 8;

Max72xxPanel matrix = Max72xxPanel(pinCS, numberOfHorizontalDisplays, numberOfVerticalDisplays);

String tape = ” Dikkat “;
int wait = 70; // In milliseconds

int spacer = 1;
int width = 5 + spacer; // The font width is 5 pixels
String serialResponse = “”;
char sz[] = ” “;

void setup() {
matrix.setRotation(matrix.getRotation()+3); //1 – 90 2 – 180 3 – 270
matrix.setIntensity(15); // Use a value between 0 and 15 for brightness

//Clear screen
matrix.fillScreen(LOW);
matrix.write();

Serial.begin(9600);
}

void loop() {

if ( Serial.available()) {
serialResponse = Serial.readStringUntil(‘\r\n’);

if(serialResponse.length() > 1){
// Convert from String Object to String.
char buf[sizeof(sz)];
serialResponse.toCharArray(buf, sizeof(buf));
char *p = buf;
char *str;
while ((str = strtok_r(p, ” “, &p)) != NULL) // delimiter is the space
{
writeText(str, true);
delay(1000);
matrix.fillScreen(LOW);
matrix.write();
delay(400);
writeText(str, true);
delay(1000);
matrix.fillScreen(LOW);
matrix.write();
delay(400);
writeText(str, true);
delay(1000);
matrix.fillScreen(LOW);
matrix.write();
delay(500);
}
}
}
}

void writeText(String str, bool center)
{
int x = 0;
if(center)
{
x = ((int)matrix.width() – (int)(str.length() * width)) / 2;
if(x < 0){
x = 0;
}
}
int y = (matrix.height() – 8) / 2; // center the text vertically
matrix.fillScreen(LOW);
int letter = 0;
while (letter < str.length()) {
matrix.drawChar(x, y, str[letter], HIGH, LOW, 1);

letter++;
x += width;
}

matrix.write(); // Send bitmap to display
}

 

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You can also download the AppInventor application file for Android phones from the link below:

LCDTexter

 

Push On – Push Off Soft Latching High Side Switch.

When you press the button, the circuit toggles its state: if it’s on, it turns off; if it’s off, it turns on. You can also turn it off by applying voltage to the shutdown pin. In the off state, it draws virtually no current — I couldn’t even measure it, as it’s below 1 microamp. This makes it ideal for battery-powered devices. When your device is off, it consumes zero power.

You can also trigger the shutdown pin via an Arduino or another microcontroller, allowing the device to turn itself off automatically once its task is complete.

Circuit diagram and component values:

PCB layout:

 

Interactive circuit diagram:

http://tinyurl.com/ydeme9lq

BVario – Smart Variometer for Paragliding

BVario is a variometer device designed with the current needs and challenges of paragliding pilots in mind. With its two high-precision sensors, it quickly and accurately detects your rate of ascent or descent and notifies you with clear audio feedback through its high-powered speaker. It can also transmit altitude data via Bluetooth to flight apps on your smartphone.

Its high-capacity built-in LiPo battery charges rapidly either through the onboard solar panel or with a standard phone charger (Micro USB). This eliminates worries about forgetting to charge it or the battery running out mid-flight.

The audio volume can be finely adjusted with an analog dial, and it can be completely muted with a switch for those who want to use it as a silent sensor only.

  

 

EB5222

EB5222 RFID terminali ile ön ödemeli kart sistemi kurulabilir. Yükleme ve kredi düşme işlemi yapılabilir. Ayrıca yetkilendirme ve uyarı sistemi de kurulabilir. Kartların yetkisi uzaktan değiştirilebilir. Kullanımı kolay bir ara yüze sahiptir. Güvenilir bileşenlerle oluşturulmuş hesaplı bir cihazdır.

NFC etiketleri ve kartvizitleriyle birçok işlemi bir dokunuş kadar kolaylaştırabilirsiniz. Örneğin:
Kartvizitinizi paylaşmak, kaydetmek,
Telefon numarası aratmak,
SMS göndermek,
Facebook sayfanızı beğendirmek,
Foursquare check-in yapmak,
Web sayfası açmak ya da uygulama yüklemek,
Telefon ayarlarınızı yapmak,
Sipariş vermek….

Ayrıca ek okuyucu cihazlar kullanarak, ön ödemeli kart olarak kullanabilirsiniz. Bir anahtar yerine kullanabilirsiniz. Yetki kontrolü için kullanabilirsiniz.

Örneğin aidatını ödemeyen bir kişi spor salonuna girişte kartını okuttuğunda turnike açılmaz ya da sesli uyarı verebilir. Ya da izin verilenden daha fazla kullandığında uyarı verebilir.

NFC etiketleriyle NFC özellikli akıllı telefona sahip müşterilerinizin hayatını kolaylaştırabilir sizi daha çok tercih etmelerini sağlayabilirsiniz. İstediğiniz boyutta çok ucuz NFC etiketlerini, müşteriniz telefonuyla dokunduğunda sizi aramasını sağlayacak şekilde programlayabiliriz. Ya da müşteri bilgileriyle birlikte belirli bir ürün siparişi geçecek şekilde. Üstelik akıllı telefona hiç bir program kurulumu gerektirmeden. Sadece NFC özellikli telefonun bu özelliğinin açık olması yeterli.