About the article


ATM18 with colour OLED display, wireless link and RFID

It’s a fascinating hardware combination, but what can we do with it? VisiOLED is a wireless door-opener featuring RFID cards for visitor identification, and visualisation using an OLED display. The project is based around the Elektor ATM18 board.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.

Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Extra info, Update

uOLED-128-G1 features

• 128 by 128 pixel resolution
• 256 or 65k colours
• 1.5 inch diagonal, module size 45.5 mm by 33.5 mm by 6.3 mm
• Active screen area: 27 mm by 27 mm
• Viewing angle: almost 180 °
• Simple five-pin interface
• Operating voltage 3.6 V to 6.0 V
• Current consumption typically 40 mA at 5 V
• RS-232-like interface (0 V/3.3 V levels) with automatic baud rate selection (300 baud to 256 kbaud)
• Two software versions: serial command platform or 4D Graphics Language

Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list

Transceiver board # 081141-1 with RFID (outdoor)
R1,R3 = 10kOhm
R4 = 1kOhm
C1,C3 = 100nF
C4 = 100µF 25V radial
D1 = 1N4001
T1,T2 = BC547B
D2 = LED, red, low current, 3mm
Re1 = 5V relay with 250VAC/5A contacts (e.g. Omron type G6D-1A-ASI 5DC)
Bz1 = 5V piezo buzzer (e.g. Megacera type CPM121A0A)
Mod3 = RFID module # 080910-91 from Elektor Shop or www.elektor.com/080910
Ant1 = wire antenna, length = 170mm (6.7 in.)
Ant2 = RFID antenna coil (160 turns 0.2mm / AWG#31 ecw, 23mm diam., L = 780µH)
K1 = 2-way PCB terminal block, lead pitch 7.5mm (0.3 in.)
Transceiver board 081141-1 with OLED (indoor)
R2,R3,R7 = 10kOhm
R4 = 1kOhm 5%
R5,R6 = 220Ohm
C1,C2,C3 = 100nF
C4 = 100µF 25V
T2 = BC547B
D2 = LED red, low current, 3mm
IC1 = 74HC4053
Bz1 = 5V piezo buzzer, e.g. Megacera type CPM121A0A
Mod1 = 433MHz data transceiver, Radiometrix type TDL2A-433-9 or equivalent
Mod2 = OLED display module, 4D Systems type µOLED-128-G1(SGC)
Ant1 = wire antenna, length = 170mm
JP1 = 2-pin pinheader with jumper
K2,K3 = 6-pin pinheader
K4 = 5-pin pinheader
PCB # 081141-1
ATM18 Test Board # 071035-92 with controller module -91

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