with professionals
with pi zero
MAX7219 dot matrix module
1 single module can drive the an 8 * 8 dot matrix common cathode
2 the module Operating voltage: 5 v
The Module 3 dimensions: length 3.2 cm X 3.2 cm wide X 1.3 cm high
4 holes with four screws, the diameter of 3 mm
Display Module OLED Blue 0.91″ 128X32
OLED display, no need backlight, self-illumination, the display performance is better than the traditional LCD display, also lower consumption.
Driver IC: SSD1306
Size: 0.91 inch OLED
Resolution: 128 x 32
IIC interface
Display Color: Blue
MIDI Plug Sockets
5 Pin, DIN plug Female
Ultrasonic Module
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
Adjustable Power Supply DC-DC Buck Converter Step Down Module LM2596
Non-isolated step-down (BUCK) switching regulator.
Short circuit protection: Current limiting, self-recovery
Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease)
Non-synchronous rectification
Carbon monoxide gas MQ7 sensor
Testing gas: Carbon Monoxide
Detection of concentration: 10-1000ppmCO
Loop voltage: 10V DC
Heater voltage: 5V±0.2V ACorDC(high), 1.5V±0.1V ACorDC(low)
Load resistance: adjustable
Heating resistor: 31±3(indoor temperature)
Heating dissipation: 350mW
Sensitive part surface resistance: 2K-20K
Sensitivity: Rs(in air)/Rs(100ppmCO)5
Concentration gradient: 0.6
Temperature, humidity: 20±2, 65%±5%RH
Standard test circuit: Vc: 5v ±0.1v, Vh(high): 5v ±0.1v, Vh(low): 1.5v ±0.1v
Ethernet Shield W5100
Description
With this Ethernet Shield, your Arduino board can be used to connect to internet.
Can be used as server or client.
Directly plug puzzle board, no soldering required.
Controller: W5100.
This Arduino Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your Arduino Online.
It is directly supported by Arduino official Ethernet Library.
Aluminum Heat Sink 20x20x15mm for raspberry pi
Specification:
Materials : Aluminum
Size : 20*20*15mm (L*W*H)
Color: Silver
Solenoid Door Lock Medium
Item Specifics:
Powered form: Interrupted
Unlock time: 1 second
Input Current: 0.34A;DC12V
Approximate Dimension: Length - 27mm; Width - 15mm; Height - 17mm; Tongue Length - 7mm; Tongue Height - 10mm
Cable Length: 120mm
Relay Module 5V
Description
1.1-Channel relay module
2.The module can be high or low by a jumper setting trigger
With power and relay action indicator
4.The module Operating voltage 5V
5. The module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A
FEATURED
18650 1200mAh 3.7V Li-ion Rechargeable Battery
Nominal Voltage 3.7V
Charge Voltage 4.2V
Cut-off Voltage 2.75V
Capacity 1200mAh
Diameter 18.4mm
Height 65.0mm
Temperature Charge: 0°C ~ 45°C
Discharge: -20°C ~ 60°C
Storage: -20°C ~ 30°C
Humidity: 65±20%
Cycle life >500 times
Standard charge current 0.5C
Fast charge current 1C
Max discharge current 1C
OEM customize wires/connector/solder tabs/battery packs
Packing traying packing or in small boxes
Certificate CE, ROHS, MSDS
18650 3200mAh 3.7V Li-ion Rechargeable Battery
Nominal Voltage 3.7V
Charge Voltage 4.2V
Cut-off Voltage 2.75V
Capacity 1800mAh
Weight 44g
Diameter 18.4mm
Height 65.0mm
Temperature Charge: 0°C ~ 45°C
Discharge: -20°C ~ 60°C
Storage: -20°C ~ 30°C
Humidity: 65±20%
Cycle life >500 times
Standard charge current 0.5C
Fast charge current 1C
Max discharge current 1C
OEM customize wires/connector/solder tabs/battery packs
Packing traying packing or in small boxes
Certificate CE, ROHS, MSDS
AC Digital Amp Volt Meter 100A 300V
Features:
* Dual measurement of AC voltage, AC current with AC current transformer
* Voltage Measuring Range: AC 80 ~ 300V
* Current Measuring Range: AC 0.1 ~ 100A (Current in excess of 1A is recommended)
* Display backgroud color & Type: Blue & LCD
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Brands
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