16 Key 4×4 Membrane Switch Keypad 4*4 Matrix Array Smart Car keyboard for arduino Diy Kit
SKU:
2348
In stock
Contact resistance 500 ()
Insulation resistance 100 M
Key FORCE OF 150-200N
Bounce time 1 (MS)
Life of 100 million (times)
Operating temperature 60 ()
1, the electronic characteristics
Classification of the circuit: 35 V (DC), MA, 1 W
Contact resistance: 10-500
(Varies according to lead lengths and is different from those of the material used)
Insulation resistance: 100 M 100 V
Dielectric strength: 250 VRms (50 ~ 60Hz 1 min)
Electric shock jitter: <5 ms Service
life: touch type: one million times
2, the mechanical properties
Operating pressure: touch: 170-397g (6-14 oz)
Travel switch: touch type: 0.6 ~ 1.5mm
3, environment parameters
Operating temperature: -40 to + 80
Storage temperature: -40 to + 80
Temperature: 40.90% to 95%, 240 hours
Vibration: 20G max (10 ~~ 200Hz Mil-SLD-202 M204. Condition B )
CJMCU Plant Watering Alarm Humidity Moisture Sensor
SKU:
2347
In stock
Description:
plant watering alarm
Durable and practical
Top Sales Item
Plant Watering Alarm Sensor
This sensor will be silent when it?s dark and will restrict itself from making too much noise.
This is a plant watering alarm - as simple as that. You put it into the soil near a plant and it emits
a tiny chirp when the soil is dry, reminding you to water the plant. It uses capacitive humidity sensing
as opposed to resistive humidity sensing, this means, it does not make an electric contact with the soil,
avoiding electrode corrosion and soil electrolysis and resulting in better accuracy and longer battery life.
MH-M28 M28 Bluetooth MP3 Audio Receiver Lossless Decoder HiFi BLT 4.2 MH-MX8
SKU:
2340
In stock
Condition: new
Type: voltage regulator
Dissipation power: Audio Modul
Operating temperature: -40- + 85
Supply voltage: MP3 decoder board
It is a low power Bluetooth design solution that supports the latest Bluetooth 4 transmission, 2, two-channel
stereo lossless playback and Bluetooth wireless transmission when the module is connected to Bluetooth,
which is very convenient, in an open environment, the Bluetooth connection distance can be up to 20 meters.
Widely used in a variety of Bluetooth Audio Reception, a variety of DIY audio modification.
1. Bluetooth version V4.2, compatible with Bluetooth automatic connection technology, compatible
with WAV / WMA / FLAC / APE / MP3 lossless decoding, stereo dual channel output.
2. After turning on the module, the mobile phone searches for the Bluetooth name MH-M28, and can play
music after connecting Bluetooth.
3, Blue indicator light module:
If Bluetooth is not connected, the indicator light flashes rapidly;
When the bluetooth connection is on, the indicator light is always on;
Color: Photo color
ST-Link V2 New stlink mini STM8STM32 STLINK programmer with cover
SKU:
2330
In stock
1. Support the full range of STM32 SWD interface debugging, simple interface (including
power supply), 4 line speed, stable work; Interface definition shell directly address!
Don't need to read instructions!
2. Support all series STM8 SWIM download debugging (common development environment such as
IAR, STVD etc.) are supported. Support the software version is as follows:
ST - LINK Utility 2.0 and above
STVD 2 and above
STVP 3.2.3 and above
IAR EWARM V6.20 and above
IAR EWSTM8 V1.30 and above
KEIL RVMDK V4.21 and above
3.Support the firmware upgrade automatically, to ensure that the ST company product
support. When they leave the firmware has been upgraded to the latest V2.J17.S4
W1209 heating element for incubator hair dryer accessories curling iron heater 90? degrees Celsius 12V air heater
SKU:
2328
In stock
W25Q64 64Mbit 8MByte Storage FLASH interface module SPI BV FV
SKU:
2325
In stock
I2C IIC 8 channel logic level converter module bi-arduino directional module upstream 3.3V to 5V module
SKU:
2322
In stock
If you've ever tried to connect a 3.3V device to a 5V system, you know how difficult it can be.
Bidirectional logic level converter is a small device that safely reduces signals
from 5 V to 3.3 V and increases 3.3 V to 5 V at the same time.
This level converter also works with 2.8V and 1.8V devices.
What really separates this logic level converter from our previous versions is
that you can configure your high and low voltages and increase and decrease between them
safely on the same channel Each level converter has the ability to convert 4 pins on
the high side to 4 pins on the low side with two inputs and two outputs provided for each side
TTGO T-BASE ESP8266 WIFI WIRELESS MODULE 4MB FLASH I2C FOR ARDUINO
SKU:
2297
In stock
LilyPad 328 Main Board ATmega328P ATmega328 16M For Arduino
SKU:
2290
In stock
- This is LilyPad - the main board consisting of an ATmega328 with the to 5V.
- The latest version of the LilyPad supports automatic reset for even easier programming.
- The back side of the LilyPad is now completely flat! We now use a surface mount programming
- connector to keep the header from poking through.
- This version of the LilyPad now uses the new ATmega328 at 8MHz. 0016 supports the Pro Mini 328/8MHz/16MHZ.
- Use this setting when using this new LilyPad 328.
- LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun.
3296W 105LF 105 1MOhms 0.5W, 1/2W Variable Resistor Trimming Potentiometer
SKU:
2278
In stock
Power supply 220V to 12V 20A 240W AC to DC Switching Mode
SKU:
2271
In stock
RS485 to TTL Converter Module MAX485 Module
SKU:
2261
In stock