module description
1- The motor drive module itself comes with four L9110S chips.
2- module supply voltage: 2.5-12V
3- Suitable motor range: the motor working voltage is between 2.5v-12V, and the maximum working current is 0.8A. The voltage and current of the current smart cars on the market are within this range
4- can drive 4 DC motors at the same time, or 2 4-wire 2-phase stepping motors.
module interface description
[10P black curved pin description]
1 A1 External MCU IO port
2 A2 external MCU IO port
3 B1 External MCU IO port
4 B2 External MCU IO port
5 C1 external MCU IO port
6 C2 External MCU IO port
7 D1 External MCU IO port
8 D2 External MCU IO port
9 + External 2.5 V- 12 V voltage
10-External GND
[8P PCB terminal description]
1 MOTORA is connected to 2 pins of DC motor, no direction
2 MOTORB Connect 2 pins of DC motor, no direction
3 MOTORC is connected to 2 pins of DC motor, no direction
4 MOTORD is connected to 2 pins of DC motor, no direction
Instructions for use of three modules
Turn on VCC, GND module power indicator light is on
A1 inputs high level, A2 inputs low level, MOTORA motor rotates forward;
A1 inputs low level, A2 inputs high level, MOTORA motor reverses;
B1 input high level, B2 input low level, MOTORB motor rotates forward;
B1 input low level, B2 input high level, MOTORB motor reverses;
C1 input high level, C2 input low level, MOTORC motor rotates forward;
C1 input low level, C2 input high level, MOTORC motor reverses;
D1 input high level, D2 input low level, MOTORD motor rotates forward;
D1 input low level, D2 input high level, MOTORD motor reverses;
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