Instrucciones de montaje del microcontrolador μECU, Diapositivas de Mecatrónica

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Building instructions μECU

Figure 1 Circuit diagram board μECU - page 1

• Figure 2 Circuit diagram board μECU - page

The wired components are plugged onto the board from the labelled side (the component side). The components are soldered on the back side (the solder side). Two integrated circuits are pre-soldered on this side. The components are best soldered in the suggested order. In the 3rd column of table 1 are the names of the components printed on the component side and in the 4th column the corresponding values. Please check the last column to see if you need to pay attention to the placement of the part. The resistors have the value coded with color rings. It is best to measure them. After a few soldering steps the board will look like in figure 4.

Figure 4

After soldering all components, the board looks like in the next picture.

Figure 5

Only the microcontroller and the display are missing. To insert the short-circuit plugs correctly, look at figure 3.

Soldering step

Picture Name Value Description Quantity Polarity

IC2 FT232 BL USB/Seriell Interface 1

Ja (already soldered on the solder side)

IC3 ATMega8 Microcontroller 1

R12, R15, R16, R17,

R18, R23, R24, R

1 kΩ

Resistor

Nein

R9 1,5 kΩ 1 R3 2 kΩ 1 R19 10 Ω 1 R1, R2, R4, R5, R10, R13, R14, R21, R 10 kΩ 9 R7, R8 27 Ω 2 R6 470 Ω 1

NTC 10 kΩ

NTC-Resistor Soldered with up to 10 mm distance

1 Nein

FOTOW

Fototransistor Long leg to the outside 1 Ja

11 S5 DIP-Switch 1 Ja

12 R11 2,5 kΩ Trimmer 1 verpolungssicher

13 L1 150 μH Choke 1 Nein

14 S1,S2,S3,S4 Keys 4 verpolungssicher

(^15) + C3, C20 100 μF Electrolytic capacitor Long leg (+) 2 Ja

16 T1 BC337 Transistor 1 Ja

17 SV2 Connector 34-pol. 1 Ja

E

B

C

Stapelleiste 16-pol. Shortly down 1

JP2 Ja Stapelleiste 1x3 Pin Shortly down

JP

Stapelleiste 2x3 Pin Shortly down

19 X1 USB B-Connector 1 Reverse polarity protected

20 J1 Connector 1 Reverse polarity protected

C1 220 μF Electrolytic capacitor Long leg (+) 1 Ja

22 TP

Lötnagel point down

IC1 ATMega Microcontroller Is plugged into the socket 1 Ja

adhesive feet 4