Introduction:
The first motor-driven expansion board based on ESP-12E.
Features:
1. ESP12 DEV KIT development board expansion module;
2. Lead all functional pins of ESP12 DEV KIT: SPI, UART, GPIO, AI and 3.3V power interface;
3. Extend the two-way motor drive to directly drive two-way motors
4. On-board power switch;
5.L293D
6. Motor power range: 4.5V ~ 36V;
7. Control power range: 4.5V ~ 9V;
8. Separate motor power and control power; in the experiment, you can short-circuit VIN and VM by combining the short-circuit blocks and supply power to the motor and control board at the same time.
Product technical specifications:
power input:
1. Motor power (VM): 4.5V ～ 36V, can be powered separately;
2. Control power (VIN): 4.5V ~ 9V (10VMAX), can be powered separately;
3. The module provides short-circuits (short-circuit VM and VIN), which can easily use a power supply (must be 4.5V ~ 9V) to complete the drive and control of the motor at the same time;
4. Logic working current Iss: ≤60mA (Vi = L), ≤22mA (Vi = H);
5. Driving current Io of driving part: ≤1.2A;
6. Maximum power dissipation: 4W (T = 90 ℃)
7. Control signal input level: high level: 2.3V≤VIH≤VIN; low level: -0.3V≤VIL≤1.5V
8. Working temperature: -25 ℃ ～ ＋ 125 ℃
9. Driving form: dual high-power H-bridge driver
10. ESP12E Dev Kit control port: D1, D3 (A motor); D2, D4 (B motor)
Precautions:
1. When inserting the ESP-12E module, please note that the antenna direction is the same as that of the expansion board;
2. The short circuit module can be used to supply power to the control board and the motor at the same time.
3. Abundant information.
Shipping list:
ESP-12E expansion board * 1
