Speed controller for DC motor (PWM) 6V-30VDC 300W 10A 20A

The adaptor for the well-known ESP-12 and ESP-12E module

A high-performance regulator-booster.
24V battery charger - DC / CV method.
Power supply of the laptop from a 12V car battery.
A high-performance dimmer-regulator.
Charger for Li-Ion, Li-Po batteries etc. - CC / CV method.
LED Constant current driver for LED diodes.
Characteristic:
- Input voltage: 6V -40V
- Output voltage: 1.25-35V (adjustable)
- Output current: 8A, (10A maximum)
- Output power: 300W maximum
- Efficiency of Conversion: up to 95%
- Wiring: Solderless terminal
- Operating frequency: 300kHz
- Ambient temperature exceeds 40 ° C, increase heat dissipation
- LED indicator two-color;
- Charge red
- Fully charged light green
- No charge green

Mini ESP8266 ESP12E CH340 WiFi Development
NodeMcu module based on ESP8266 controller and programming in Lua language
NodeMcu it is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC
It works as a standard WiFi 802.11 b / g / n 2.4 GHz
Wemos D1 Mini ESP8266 ESP12E CH340 WiFi Wireless Development features:

- Compatible with Arduino, programming with the Arduino IDE
- Power supply voltage: 5V
- LOGICAL LEVELS: 3.3V
- 11 input / output pins
- 1 ADC (input: 0-3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz - Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- Integrated TCP / IP stack
- PLL, regulators and power management units Integrated

The optical module (reflective) sensor with CMOS Schmitt inverter 74HC14D, which detects obstacles with high precision. The ideal obstacle detection detector for the installation of smart robots. TCRT5000 - reflective optical sensor that has a compact construction where the light emitter and receiver are placed in the same direction to detect the presence of an object using infrared reflection on the object. The working wavelength is 950nm. The transmitter is infrared LED and the phototransistor receiver.
The sensor allows the detection of an object at a distance of up to 15 mm. TCRT5000 IR Infrared Sensor Module features:
- The module has an output: digital
- CMOS Schmitt inverter 74HC14D
- Power supply: 5V - Range: 0.2 mm - 15 mm

Encapsulated with water resistant stainless steel with sensor dimensions 5.5*50mm, cable length 200 cm. DS18B20 Probe 2m Submersible Temperature Sensor features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 °C to 125 °C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
      - Vcc red
      - Yellow digital output
- Inocidable steel
- Cable length: 2m  

Ideal to control the speed of DC motors.
Characteristic:
- Input voltage: 12-40VDC,
- Max continuous output current: 8A (peak current 10A),
- Control power: 0.01- 400W,
- Dimensions: 60x75x28mm,
- PWM frequency: 13kHz,
- Static current: 0.02 A (Standby),
- Adjustable duty cycle: 10% -100% ,
- It integrates a L7812CV TO-220 regulator,
- It incorporates a 10A fuse to protect the power circuit.
Note that the voltage applied to the motor will be the supply voltage applied to the circuit.

A4988 + RepRap Radiator features:
- Minimum operating voltage: 8 V
- Maximum operating voltage: 35 V
- Maximum current: ± 2 A (adequately ventilated or refrigerated)
- Logic voltage: 3 V / 5.5V
- Microstep resolution: full, 1/2, 1/4, 1/8, and 1/16
- Factory soldered temples
- Use potentiometer to adjust current
- Measurements: 20x16x12 mm

Characteristic: - Supply voltage: 4.5V- 5.5V
- Consumption: 30 mA typical
- Analog output
- Range: 10cm to 80cm
- Dimensions: 29x12mm
- Cable length: 20cm GP2Y0A21YK0F Sharp Analog IR distance sensor 10CM-80CM Arduino