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Small is Beautiful: Minimod18

A new microcontroller board for Elektor ATmega projects

Published in issue 400, April 2010

Small is Beautiful: Minimod18
Minimod18 is a very compact general-purpose microcontroller module. It includes frequently required peripheral components, such as pushbuttons and an LC display, as well as several interfaces (USB, I²C and ISP/SPI). You only have to assemble the peripheral circuitry necessary for your specific application and connect it to the Minimod18. This way you can build a complete device with entry and display capability in almost no time.

Resistors
R1,R2,R5 = 2.2kOhm (0603)
R3,R4 = 68Ohm (0603)
R6 = 10kOhm (0603)
P1 = 10kOhm Trimmer (TC33)
Capacitors (0603)
C1,C2 = 22pF
C3–C6 = 100nF
Inductors
L1 = 10 µH (0603)
Semiconductors
D1,D2 = 3.6V (SOT23)
IC1 = AT24C512 (SO-08M)
IC2 = ATmega328-AU (TQFP32-08), programmed, Elektor order # 090773-41
Miscellaneous
LCD = EADIPS082-HNLED
K1 = 1-pin pinheader, right angled
K2 = USB-B socket
K3 = 6-pin pinheader, angled
S1,S2 = PCB mount pushbutton
X1 = 16MHz quartz crystal (ABM3)
PCB, order # 080950-1 from Elektor Shop
or
ready populated and tested module with preinstalled bootloader, Elektor Shop order # 090773-91

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 

Article PDF
10 Elektor Credits
 

Order this magazine 

Magazine April 2010
UK400 (US $ 7.50)
 

Order from Elektor 

PCB, populated and tested with Bootloader pre-programmed
090773-91 (US $ 90.40)
Programmed controller with Bootloader pre-programmed
090773-41 (US $ 35.20)
 

Free downloads 

Software

Free download

Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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