Arduino hennisoft.ie

traffic light (pedestrians/cars):

small simulation of traffic light (pedestrians/cars) where the different phases of the traffic light would be emulated kind of realisticly.
Meant that if push-button is pressed, the car traffic light will have a short "yellow" and e.g if car traffic light got "red" there will be a delay until pedestrians get "green" ...

that's how it looks like (in doubt, please download original AVI from top right ~34MB):

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item-list:

• Arduino UNO
• 2x red, 1x yellow und 2x green LEDs
• 5x 220 Ω resistors
• 1x 10k Ω resistor
• 1x push-button
• ... and a few cables

circuit-schema:

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sourcecode:

Quellcode ampel.ino
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7-segment-display x2:

Two 7-segment displays are driven by 2x 74HC_HCT4094 Shift Register ICs.
This results in using only 3 I/O-ports from Arduino.
In this sample code it will be continously counted from 0-99 and backwards.

that's how it looks like (in doubt, please download original AVI from top right ~34MB):

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item-list:

• Arduino UNO
• 2x 7-segment displays
• 2x 74HC_HCT4094 shift register
• 4x 330 Ω resistors
• ... and a lot of cables

circuit-schema:

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sourcecode:

sourcecode Sieben_Segment_x2.ino
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greetings via LCD-Display:

shows a colorful message onto a mini TFT display.
The "screensaver", that can be deactivated by pressing the button, is a picture of Bender (bendx.bmp), which is stored on a SD-card (on the backsite of TFT).

The TFT modul ST7735R is a 132 x 162 pixel 262K colour display with Serial Peripheral Interface (SPI) and access (via SPI as well) and slot for mini SD-card.
The mandatory library ST7735 + examples and picture (bendx.bmp) can be found in download section.

that's how it looks like (in doubt, please download original AVI from top right ~48MB):

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item-list:

• Arduino UNO
• 1x ST7735R (color single-chip TFT + mini SD-slot)
• 1x mini SD-card
• 1x 10k Ω resistor
• 1x push-button
• ... and a few cables

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sourcecode:

sourcecode gruesse.ino
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temperature + 7-segment-display x4:

shows the current temperature measured by TMP36 Sensor on a 7-sement x4 unit.
The temperature range is: -9.9℃ − 99.9℃
(for Ireland a range of -5.0℃ − 18.0℃ would be more than enough! ☺).

that's how it looks like (in doubt, please download original AVI from top right ~37MB):

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item-list:

• Arduino UNO
• 1x TDCR1050m (7-segment x4)
• 2x 74HC_HCT4094 shift register
• 1x TMP36 Sensor
• 10x 330 Ω resistors
• ... and a lot of cables

circuit-schema:

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sourcecode:

sourcecode temperatur2.ino
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