Fibre glass reinforced, 1 1/4" cut off wheels/disc for dremel/rotary tools 10pcs for 250php

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PWM Controller Module SG3525 Adjustable Frequency 100-400kHz

Details:
1. Onboard SG3525A PWM control chip
2. On-board 78M05 regulator chip, providing a reliable reference voltage
3. Onboard two precision adjustable resistors, R3 controls the duty cycle, R4 control frequency
4. On-board power indicator
5. Working voltage: 8 ~ 12V
6. Board size: 30.8 (mm) x18 (mm)

Shipping Included:
1PCS*SG3525 Module

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PN532 Mini NFC RFID Reader/Writer Module Compatible Arduino/ Android Phone

Package Included:
1PCS*PN532 NFC RFID Module
1PCS*2.54mm spacing 4pin Cable
1PCS*Mifare One S50 White Card
1PCS*Mifare One S50 Key Card
1PCS*12P bended male pins

Item details and my terms:
Postimage.org / PN532

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2000W 220V Speed Controller SCR Voltage Regulator Dimming Dimmers Thermostat

Description:
Connect this device with lamp or home appliance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control.
Applicable appliance: electric furnace, water heater, lamps, small motor, electric iron etc.
Input voltage: 220V.
Maximum power: 2000W.
Adjustable voltage: 50-220V AC.
Material: plastic, metal.
Size: 4.8cm x 5.5cm x 2.7cm.

Package Included:

1 x 220V 2000W Speed Controller SCR Voltage Regulator Dimming Dimmers Thermostat

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SOIC8 turn DIP8 SOP8 to DIP8 IC socket Programmer adapter Socket 150mil

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USBASP USBISP AVR Programmer Adapter 10 Pin Cable USB ATMEGA8 ATMEGA128

Package Includes:
1*pc USBASP USBISP AVR Programmer Adapter

Item details:
View image: USBASP Desc

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Photoelectric diode, Intelligent car sensor module, Photosensitive light brightness sensor

Module Description:
1. Can detect the brightness of the surrounding environment and strong (and photosensitive resistance comparison, directivity is good, can sense fixed direction of the light source)
2. Sensitivity adjustable (shown in blue digital potentiometer control)
3. Working voltage of 3.3 V - 5 V
4. Output form:
A Analog voltage output
B Digital switch output (0 and 1)
5. Has fixed bolt hole, convenient installation Seven small board PCB
6. Size: 3 cm * 1.6 cm
7. Module interface specifications (4 wire)
8. VCC external 3.3 V - 5 V voltage (can be directly and 5 V single-chip microcomputer and single chip microcomputer to 3.3 V)
9. GND external GND
10. DO small plate digital output interface (0 and 1)
11. AO small plate analog output interface

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Four 4 Channel Infrared Detector Tracked Photoelectricity Sensor For Smart Car

Description:
1. Operating voltage: DC 3.3V-5V
2. Operating Current: try to choose more than 1A power supply
3. Operating Temperature: -10 ° C - +50 ° C
4. Mounting aperture: M3 screw
5. Detection distance: 1mm to 60 cm adjustable closer the performance is more stable, the white reflection farthest.
6. Size: the control board 4.4mm × 4.0mm × 12mm (L × W × H)
Small plate forward 25mm x 12mm x 12mm (L × W × H)
The output interface: 6-wire interface (1234 for the 4-way signal output terminal, + positive power, - the negative power supply is ground)
Output signal: TTL level (directly connected microcontroller I / 0, sensitive to infrared light reflected back by the sensor, the red light is on, the output low; absence of infrared light, the light does not shine, the output high level.)

Applications:
A smart car or robot hunt (including black and white lines), walking along the path of the black line, also known as tracing.
Smart car to avoid the cliff, anti-drop.
Smart car for obstacle avoidance

Package Included:
1 x Tracking module sets (hollow board + board forward four)
1x 20cm DuPont line 18 for easy wiring

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RS-232 RS232 to RS-485 RS485 Serial Adapter Converter

Description:
Brand new RS232 to RS485 Converter Adapter w/3P terminal board.
It is widely used in industrial automation, door safe, all-in-one-card, car parking, ATM, bus charge, eatery sell out, staff attendance management, and highway toll gate, etc.
Compatible with EIA/TIA RS232 & RS485 standard.
Interface RS232 side: DB9 female connector.
Interface RS485 side: DB9 male connector with optional terminal board Telecommunication agreement: Transparent. Signals: RS-232: TXD, RXD, RTS, CTS, DTR, DSR, DCD, CND, RS-485: Date+, Date-, GND Work environment: -10deg to 85deg, relative humidity: 5% to 95%.

Working mode: Asynchronous, Half-duplex, Differential transmission.
Transmission media: common wire, double wire or UTP or Shielding Line.
Transmission rate: 300 - 115200bps, which is capable of applying between host computers, host computer and its external equipments and forms point to point, point to multi-points network.
Transmission distance: RS485 max. 1200m, RS232 side max. 5m.

Package Included:
1 x RS-232 RS232 to RS-485 RS485 Serial Adapter Converter

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TM1637 4 Bits Digital Tube LED Display Module With Clock Display for Arduino

Specification:
The module is a clock point four common anode tube (0.36 in.) display module for driver IC TM1637, only two signal lines can make the MCU control 4 8 digital tube.

Features:
1. Display common anode for the four red LED
2. Digital tube 8 gray adjustable
3. Level control interface for 5V or 3.3V
4. Size:42X24X12mm

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Remote control toy car transmitter TX-2B SOP-16 TX2B Transmitter

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