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Shields Sensors Modules Programmers Relays Converters **In stock, USA**

Shields Sensors Modules Programmers Relays Converters **In stock, USA**

Regular price $4.50 USD
Regular price Sale price $4.50 USD
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1. AC Adapter, 9V
2. Display, OLED, 0.96-inch, Blue
3. Expansion Terminal for Arduino Nano board
4. Keypad Membrane Matrix Array Switch, self-adhesive
5. Motor Driver Board, L298N
6. Peltier, Thermoelectric cooler module, TEC1-12706
7. Programmer, AVR USB
8. Programmer USB to TTL Serial UART, CP1202
9. Relay, double channel
10. Relay, single channel
11. RTC, Real Time Clock Module, DS3231
12. Sensor, Temperature & Humidity, UC-121
13. Sensor, Ultrasonic Distance high precision HY-SRF05
14. Seven Segment Display – 2.3” Red, Common Anode
15. Voltage Converter, adjustable buck step-down DC to DC 3A, MP1584EN (mini)
16. Voltage Converter, adjustable buck step-down DC to DC 5A, XL4015
17. Wi-Fi mini board, ESP8266 D1 Lua

1. AC Adapter, 9V
AC Adapter with plenty of power to supply most common Arduino applications.
INPUT: 110-240V AC (Automatic bi-volt), 50/60Hz
Model: HCY-6888

2. Display, OLED, 0.96-inch, Blue
OLED Display 0.96 Inch OLED Display 128X64 Module for Arduino
These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. Since the display makes its own light, no backlight is needed. This reduces the power required to run the OLED and is why the display has such high contrast. 
This breakout can be used with either an SPI or I2C interface - selectable by soldering two jumpers on the back.  The design is completely 5V-ready, with an onboard regulator and built in boost converter. It's easier than ever to connect directly to your 3V or 5V microcontroller without needing any kind of level shifter! 
No embedded fonts inside the OLED controller, user can create the fonts through the font generation software.
High resolution: 128 * 64
Viewing angle:> 160 degree
Supports many control chips: Fully compatible with UNO, Mega, 51 Series, MSP430 Series, 
STM32 / 2, CSR IC, etc.
Ultra-low power consumption: full screen lit 0.08W
Display area: 29.42 x 14.7mm
Voltage: 3V ~ 5V DC
Working Temperature: -30 c ~ 70 c
Module Size: 27.0MM * 27.0MM * 4.1MM
I2C/IIC Interface, need 2 IO only.
Driver IC: SSD1306
Character Color: Blue

Pin definitions:
1> GND (power ground)
2> VCC (positive power supply)
3> SCL (clock line)
4> SDA (data line)

3. Expansion Terminal for Arduino Nano board 
Nano Expansion Terminal Adapter Shield for Arduino Nano V3.0 ATMEGA328P AU Board
This is an expansion module for use with Arduino Nano 3.0 compatible boards.
No assembly required, ready-to-use.
Terminals labeled according to the Nano original label.
Easy to use
You can purchase it with or without the Nano 3.0 board.

Weight: 76g
Size: 2.21" x 1.65" x 0.50" (L* W* H)

4. Keypad Membrane Matrix Array Switch, self-adhesive
Model: 4 x 3 Matrix Array 12 Key Membrane Switch Keypad
Style: Self-Adhesive on backside of panel Max
Circuit Rating: 35VDC, 100mA
Insulation Spec.: 100M Ohm, 100V
Dielectric Withstand: 250VRms (60Hz, 1min)
Contact Bounce: Less than =5ms
Life Expectancy: 1 million closures
Operation Temperature: -20 to +40 degree C
Cable Length: 3-1/3inch or 86mm (include connector)
Connector: Dupont 7 pins, 0.1inch (2.54mm) 
Color: Black, red and blue
Size: 69.2 x 76.9 x 0.8mm
Material: plastic film

Package Include:
1 x Matrix Array 12 Key Membrane Switch Keypad 4 x 3

5. Motor Driver Board, L298N
New L298N DC Stepper Motor Driver Module Dual H Bridge Control Board for Arduino
This L298N Motor Driver Module is a high-power motor driver module for driving DC and Stepper Motors. This module consists of an L298 motor driver IC and a 78M05 5V regulator. L298N Module can control up to 4 DC motors, or 2 DC motors with directional and speed control. 
The L298N is a dual H-Bridge motor driver which allows speed and direction control of two DC motors at the same time. ... If the motor supply voltage is up to 12V we can enable the 5V regulator and the 5V pin can be used as output, for example for powering our Arduino board.
If you send a HIGH signal to the enable 1 pin, motor A is ready to be controlled and at the maximum speed.
If you send a LOW signal to the enable 1 pin, motor A turns off.
If you send a PWM signal, you can control the speed of the motor. The motor speed is proportional to the duty cycle.

Driver chip: L298N dual H-bridge driver chip 
Drive section terminal supply area VMS: 5 V ~ 35 V 
Drive section peak current Io: 2A / Bridge 
Logical part of the terminal supply area Vss :4.5-5.5V 
Logical part of the operating current range: 0 ~ 36mA 
Control signal input voltage range: 4.5-5.5V HIGH LOW 0V 
Maximum power consumption: 20W 
Storage temperature: -25℃ ~ 130 ℃ 
Driver Board Size: 55mm * 60mm * 30mm

6. Thermoelectric Peltier cooler module, TEC1-12706
Thermoelectric modules create a dramatic temperature differential between the two sides of their ceramic plates when electric current is applied. This is the most popular, low-cost Peltier chip.
Module Cooling TEC1-12706 Peltier Heatsink Plate Thermoelectric Cooler
Size: 40mm x 40mm x 3.6mm.
Working current: 4.3-4.6 A (rated 12 v); Imax: 6A.
Rated voltage: DC12V (Vmax: 15 v starting current 5.8 A).
Operates Temperature: -30℃ to 70℃. 
Refrigeration power: Qcmax 50-60 w.

Package Include:
1 unit of TEC1-12706 Heatsink Thermoelectric Cooler Cooling Peltier Plate Module 12V 60W

7. Programmer, AVR USB
USBASP USBISP AVR Programmer Adapter with 10 Pin Cable USB ATMEGA8 ATMEGA128 For Arduino
USBASP USBISP 3.3V / 5V 51 AVR Downloader Programmer USB ATMEGA8
Supports 5V and 3.3V power supply
Has power and programming indicator light
On-board overcurrent protection
Fast and stable 10 PIN interface
Supports 51 serials and the AVR serials chips

Support for AVRDude from version 5.2 onwards
Allows read / write the microcontroller EEPROM, firmware, fuse bits and lock bits
Support for Linux, Mac OS X and Windows
5 KB/sec maximum write speed
Software controlled SCK option to support targets with low clock speed (< 1.5MHz)
10 pin ISP interface

Compatible with:
- Mega Series
ATmega8 ATmega48 ATmega88 ATmega168 ATmega328
ATmega103 ATmega128 ATmega1280 ATmega1281 ATmega16
ATmega161 ATmega162 ATmega163 ATmega164 ATmega169
ATmega2560 ATmega2561 ATmega32 ATmega324 ATmega329
ATmega3290 ATmega64 ATmega640 ATmega644 ATmega649
ATmega6490 ATmega8515 ATmega8535
Tiny Series
ATtiny12 ATtiny13 ATtiny15 ATtiny25 ATtiny26
ATtiny45 ATtiny85 ATtiny2313
- Classic Series
AT90S1200 AT90S2313 AT90S2333 AT90S2343 AT90S4414
AT90S4433 AT90S4434 AT90S8515AT90S8535
- CAN Series
- PWM Series

What’s in the box: 
One AVR 10 Pin USB Programmer 5V 51 ATMEGA8
One 10 pin Cable

8. Programmer USB to TTL Serial UART, CP1202
CP2102 Module USB to TTL - USB To Serial UART STC uploader Micro Interface Board for Arduino
This is the USB interface board needed to upload your program to the Arduino Pro Mini Board.
Just connect this board to the Arduino Pro-Mini, upload your code and you’re done.
This version comes with 6 pins which is ideal for all OS, including Windows 10.
Pins are included.

9.   Relay, single channel & 
10. Relay, double channel

5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Arduino – 1 & 2 channels
These relays work great, genuine work horses, with SMD optocoupler isolation, and very stable performance.
It can be used as a microcontroller development board module, or as home appliance control.
Normally open interface and can be set to high or low triggered by jumper.
Maximum load: AC 250V/10A, DC 30V/10A.
Trigger current: 5mA
Fail safe design, even if the control line is broken, the relay will not operate.
Convenient terminal wiring leads, easy to connect and operate
5V relay module
TTL control signal of 5V-12V
Controls DC or AC signal, and controls 110V or 220V AC load.
There is a normally open and a normally closed contact
With power indicator
The control pin has a pull-down circuit to prevent floating relay from malfunctioning

Optocoupler isolation, good anti-interference
Low level pull-in, high-level release. Pull, the status LED ON. Release, status LED OFF
VCC for the system power, JD_VCC for the relay power
Board around with four fixed screw holes, hole diameter 3.1mm, easy to install and fixed
Maximum load: AC 250V/10A, DC 30V/10A
Trigger current: 5mA
Dimensions (2 channels): 50.5mm * 38.5mm * 18.5mm 
Weight (2 channels): 31g
Dimensions (1 channel): 50mm * 26mm * 18.5mm 
Weight (1 channel): 22g

11. Real Time Clock RTC Module, DS3231
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
The device incorporates a battery input, disconnect the main power supply, and maintains accurate timekeeping.   
Integrated oscillator improves long-term accuracy of the device and reduces the number of components of the production line.     
The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package.            
RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year.
The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Provides two configurable alarm clock and a calendar can be set to a square wave output.
Address and data are transferred serially through an I2C bidirectional bus.       
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output, and if necessary, automatically switch to the backup power supply.  
In addition, / RST pin is monitored as generating uP reset manually. Save time and high precision addition, DS3231 also has some other features that extend the system host of additional features and a range of options.
The device integrates a very precise digital temperature sensor, through the I2C * interface to access it (as the same time). 
The temperature sensor accuracy is +- 3 degrees C. On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply.   
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. When the main power re-power or voltage value returns to within the allowable range, the on-chip reset function can be used to restart the system microprocessor.

-  Size: 38mm (length) * 22mm (W) * 14mm (height)
- Weight: 8g
- Operating voltage :3.3 - 5 .5 V
- Clock chipset: high-precision clock chip DS3231
- Memory chips: AT24C32 (storage capacity 32K)
- IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
- Can be cascaded with other IIC device
- 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
- Packing: single anti-static packaging

12. Sensor, Temperature & Humidity DHT11
The DHT11 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and gives out a digital signal on the data pin (no analog input pins needed). It’s simple to use but requires careful timing to grab data. Sensor readings can be as often as 2 seconds intervals max.
This module can detect surrounding environment of the humidity and temperature
Precision and reliability with excellent long-term stability
Output form digital output
Built in fixed bolt hole for an easy installation
Humidity measurement range: 20%~90%RH
Humidity measurement error: +-5%RH
Temperature measurement range: 0~60 Celsius.
Temperature measurement error: +-2Cel.
Working voltage :5 V
Size: 28x12x8mm

13. Sensor, Ultrasonic Distance high precision HY-SRF05
Ultrasonic sensors overcome many of the weaknesses of IR sensors - they provide distance measurement regardless of color and lighting of obstacles.
They also provide lower minimum distances and wider angles of detection to guarantee that obstacles are not missed by a narrow sensor beam.
This model is an upgrade from the lower precision HCSR-O4. This has 5 pins and can be used in 1-pin trigger/echo or 2-pin.

Trigger Pin Format: 10 uS digital pulse
Sound Frequency: 40 kHz
Echo Pin Output: 0-Vcc
Echo Pin Format: output is DIGITAL and directly proportional with range. See our conversion formula above.
Measurement Range: 2cm to ~4.5m
Measurement Resolution: 0.3cm
Measurement Angle: up to 15 deg
Measurement Rate: 40 Hz
Supply Voltage: 4.5V to 5.5V
Supply Current: 10 to 40mA
Connector: standard 5-pin male connector which can plug directly into breadboards.

14. Seven Segment Display – 2.3” Red, Common Anode
Large Seven Segment Display, Red 2.3-inch Digit - Common Anode.
The display size is 2.75 inches in height, the digit is 2.3” high.
7.2v for all segments, 3.6v for dot. (typical)
Plenty available, ships today! Free shipping!
Condition is "New". Shipped with USPS First Class or UPS.

15. Voltage Converter, adjustable buck step-down DC to DC 3A, MP1584EN (mini)
Mini MP1584EN DC-DC Buck Converter 3A Power Adjustable Step-Down Mod D4M3
Mini MP1584EN DC-DC 3A power step down adjustable module buck converter, Perfect for DIY mobile power supply, monitor power supply.
The Output Voltage: 0.8V ~ 20V; Input Voltage: 4.5V ~ 28V
Output Current: 3A (Max)
Conversion Efficiency: 92% (maximum)
Switching Frequency: 1.5MHz (highest), typically 1MHz
Output Ripple: Less than 30mV 
Operating Temperature: -45 Celsius ~ +85 Celsius 
Size: 22mm x 17mm x 4mm/0.87 x 0.67 x 0.16 (L x W x H)
Module Properties: Non-isolated step-down module (buck)
Great for little LED or Arduino projects, DIY mobile power supply, monitor power supply.
Size: 22 x 17 x 4mm
Package included: 1 x DC-DC adjustable step-down power module

16. Voltage Converter, adjustable buck step-down DC to DC 5A, XL4015
XL4015 5A DC Buck Step Down Voltage Converter Constant Current Power Module
Maintain stable output voltage and limit the output current over a range of input voltages. Great for general voltage conversion, battery charging, powering raw LEDs, automotive electronics, battery conversions, micro-controllers, and electronic projects.
Input Voltage: 8-36V DC, Output Voltage: 1.25-32V DC, Max Load: 75W/5A Peak, 50W/3.5A Sustained (whichever is lower, amps or watts)
Conversion Efficiency: Up to 95%, (our test result: 24V->12V1A: 92.7%)
Dimensions: 51x26.3x14mm, XL4015 IC, 180KHz Switching Frequency
Input must be at least 1V more than the output voltage. Applying reverse polarity voltage to the input or output may damage the module. Current limiting function requires at least 5.6V input.
This module combines the high efficiency XMLSEMI XL4015 DC-DC buck converter IC with a TI LM358 Op-Amp for stable current regulation.  This module offers much higher efficiency than LM2596 based modules which means less heat and more available power for your device.

17. Wi-Fi mini board, ESP8266 D1 Lua
D1 Mini Node MCU Lua Wi-Fi IoT Development Board ESP8266 CH340 module
Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
FOR Arduino-like hardware IO
Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
Code just like Arduino, but interactively in Lua script.
Nodejs style network API
Event-driven API for network applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.
Greatly speed up your IOT application developing process.

D1 Mini WiFi board based on ESP8266
Compatible with Arduino and NodeMcu
This is new version V2
Version 2 Use BRT (Bias Resistor Transistor) thus making it easier going into flash mode
Stabler operation than Old Version 1.0 board
11 digital input/output pins, all pins have interrupt/PWM/I2C/one-wire supported (except D0)
1 analog input (3.3V max input)
Built-In Micro USB Port
On board reset button
Microcontroller: ESP-8266EX
Operating Voltage: 3.3V (Max)
Please don't connect to power source which is higher than 3.3 Volts
Digital I/O Pins 11
1 analog input
Clock Speed: 80MHz/160MHz
Flash: 4M bytes
Length: 34.2mm
Width: 25.6mm
Weight: 10g

What’s in the box: 1 x D1 Mini Node MCU Lua WIFI IoT development board based on ESP8266-12E and pins as shown in picture



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