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This is 4×3 12-key Keyboard / Keypad Telephone Style. It is 12 Button Keypad switch, ideal for code or data entry. Each key is rated for up to 1,000,000 life-stroke and also features a durable high-quality material contact surface for best environmental resistances.
This 3×4 Keypad Matrix lets you quickly add controls to your electronics projects. It offers 0-9 numerals and standard star(*) and hash(#) symbols. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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| General Specification | |
| Material | Plastic |
| Color | Black |
| Key Type | 3×4 |
| Mounting Hole Diameter | 2 mm |
| Mounting Hole Center Distance | 60mm x 60mm |
| Pad Size (mm) LxWxH | 64x50x10 |
| Weight (gm) | 18 |
| Shipment Weight | 0.02 kg |
| Shipment Dimensions | 8 × 6 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x 4×3 12-key Keyboard / Keypad Telephone Style
The latest price of 4×3 Matrix 12 Keyboard Keypad in Bangladesh is BDT 330 You can buy the 4×3 Matrix 12 Keyboard Keypad at best price from our RoboticsBD or visit RoboticsBD Office.
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Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0402
Ultra-thin design & adhesive backing provides easy integration to any project Excellent price-performance ratio Easy communication with any microcontroller 5 pins 2.54mm pitch connector, 4x 4type 16 keys. Sticker can peel off for adhesive mounting. RoboticsBD Operating Voltage (V): 12 DC
Reference: RBD-0986
Ultra-thin design & adhesive backing provides easy integration to any project. Excellent price-performance ratio. Easy communication with any microcontroller 5 pins 2.54mm pitch connector, 4x 4type 16 keys. Sticker can peel off for adhesive mounting.
Reference: RBD-1333
Easy communication with any microcontroller. Tactile type switches. Over 1,000,000 operations per key. Contact rated for 12V dc @ 20mA. Over 1,000,000 operations per key. Dimensions: 56 x 80 x 17 mm.(LxWxH)
Reference: RBD-2156
Easy communication with any microcontroller. Tactile type switches. Over 1,000,000 operations per key. Contact rated for 12V dc @ 20mA. Over 1,000,000 operations per key.
Reference: RBD-0981
Low power device. DTMF decoder chip. Band-split filter. Digital decoding functions. Modem interfaces. Mobile radios.
Reference: RBD-0575
Main color: Yellow Measure range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ±0.05pH Calibration: two points automatic calibration
Reference: RBD-0550
Supply Voltage: 4.5 – 5.5 V. Current : <40 mA. Digital Interface : 5V TTL level for UART interface and GPIO. Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking). Maximum 7 voice commands effective at same time. Arduino library is supplied. User-control General Pin Output. RoboticsBD
Reference: RBD-2064
TTL serial port for serial port, you can link directly to the micro-controller. Don’t need MAX232. Power module automatically boots, homing network. Onboard signal lights all the way. It flashes slowly when there is a signal, it flashes quickly when there is no signal. Note: If you want to buy the cheaper recycled SIM800L Module Click here.
Reference: RBD-1840
The DS1302 trickle-charge timekeeping chip module with battery backup A real-time clock/calendar and 31 bytes of static RAM. Communicates with a microprocessor via a simple serial interface. Real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. Note: Batteries not included.
Reference: RBD-1769
Input Voltage: 4.5V – 28V Output Voltage: 0.8V – 20V Output Voltage Adjustment: On-board potentiometer Output Current: 1.8A (typical), 3.0A (max). Ceramic Capacitor Stable Internal Soft-Start Internally Set Current Limit without a Current Sensing Resistor
Reference: RBD-2095
Detection distance: 2-40cm IO Interface: 4-wire interfaces (- / + / S / EN) Output signal: TTL level Adjustment: adjust multi-turn resistance Effective angle: 35 °
Reference: RBD-2242
Wearable e-textile technology. Designed with large sew tabs LED Yellow Color
Reference: RBD-1773
Supply Voltage: 5V USB / 3.7V lithium battery Output Port: 3-wire audio interface/DIY pad Output Type: Analog signal Bluetooth name: VHM-314-V3.0 Bluetooth version: 5.0 Bluetooth passcode: no password Sound source: Bluetooth. USB-PC input(after the back pad is connected, the computer can be connected as a sound card though Micro) Operation method:...
Reference: RBD-1871
5V single power supply. Wave frequency adjustable 0-400Hz adjustable frequency pure sine wave. Unipolar and bipolar modulation mode. External 12MHz crystal oscillator. PWM carrier frequency 23.4KHz. Voltage, current, temperature feedback real-time processing. Overvoltage, Undervoltage, overcurrent, overheating protection function. Pin set soft-start mode...
Reference: RBD-2151
2-Axis joystick Bluetooth / Serial interface I2C interface nRF24L01 interface Nokia 5110 LCD interface Interface connector Power switch to switch between 3.3 and 5V
Reference: RBD-0915
Maximum effective distance up to 150mm Less than 100ms decoding time Support external antenna Uart interface Support EM4100 compatible read-only or read/write tags Small outline design
Reference: RBD-419
Features: Built-in Red, IR, and Green LEDs 5V operation (3.3V is allowed, but green LED is not guaranteed to operate) Applications include presence detection, distance sensing (18" max), pulse oximetry, blood oxygen saturation level (SpO2), smoke and particle detection Documents: Schematic Eagle Files Hookup Guide Datasheet (MAX30105) MAX3010x Sensor...
Reference: RBD-0980
Dimensions : 66 x 66 x 3 mm. Weight : 25 gm. Supply Voltage : 5 VDC. Interface : IO . 8 x 8 = 64 RGB. Chip : WS2812.
Reference: RBD-2078
No direction, any angle can trigger the work. Sensitivity switches can be selected for the trigger sensitivity according to circuit requirements. This switch is suitable for the trigger of the small current circuit. Component Type: SW-18015P Maximum voltage: 12V Rated Heating Current: 20mA
Reference: RBD-2057
Access multiple interfaces simultaneously Serial Communication Smaller Volume Wide Range of applications
Reference: RBD-2120
Onboard precision microcurrent transformer. Onboard sampling resistor. The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA.
Reference: RBD-2086
Operating Voltage: 5V Contact Resistance : 50mΩ max (initial) Electrically Life:100,000 cycles Environment temperature: -25°C to +105°C Operating Force: 180/230(±20gf) Seal temperature:250ºC-280ºC I/O pins: 3 pins
Reference: RBD-2212
Directly plug antenna interface. I2C bus communication. Multi-capacitor combined filter. Blue LED power indicator. High sensitivity(low noise RF input amplifier). High power auto gains control AGC circuit.
Reference: RBD-0387
All SD SPI pins output, MOSI, SCK, MISO, and CS. Support 5V/3.3V input. This module can handle 2GB SD cards. Size:4.7 x 3.1 cm. LED indicator. SD Card Holder. RoboticsBD Onboard 3.3V regulator (AMS1117-3.3) for +5v to 3.3V generation. 3.3V is also available as output.
Reference: RBD-0948
Built-in Flash: 32Mbit Power supply: 5V WiFi protocol: IEEE 802.11 b/g/n Peripheral interface: UART/GPIO/ADC/DAC/SDIO/PWM/I2C/I2S Logic level: 3.3V
Reference: RBD-1098
Interface: I2C Operating Voltage: 3-5VDC Ports: 8-bit Parallel Ports Can be used with Arduino and Raspberry Pi
Reference: RBD-2082
Dimension: 2.5 x 1.5 x 1.5 cm. Receiving angle: 90 °. Working voltage: 2.7 ~ 5.5V. Frequency: 37.9KHz Receiving range: 18m. Weight: 4 gm.
Reference: RBD-0413
SD card interface works with FAT16 or FAT32 formatted cards. 3.3v level shifter circuitry prevents damage to your SD card. Real-time clock (RTC) keeps the time going even when the Arduino is unplugged. The battery backup lasts for years. Included libraries and example code for both SD and RTC mean you can get going quickly Prototyping area for soldering...
Reference: RBD-2044
Model: ESP32-CAM-MB Color: Black Chipset: CH340G Connectivity Technology: USB Note: The camera module is not included with the board.
Reference: RBD-1037
Quad-band 850/900/1800/1900MHz Inner MT3337 GPS receiver, -165dBm precision, control on a same serial port. Earphone/ microphone outputs on a card or external 32-ohm speaker + supports voice calls with an electret microphone. Sending and receiving SMS.
Reference: RBD-1753
Digital I2S interface with high precision 24-bit data High signal to noise ratio is 61 dBA High sensitivity – 26 dBFS Stable frequency response from 60 Hz to 15 kHz Low power consumption: low current consumption 1.4 mA High PSR: -75 dBFS
Reference: RBD-0400
Voltage: 3-3.6V (recommended 3.3V) V. Maximum output power: +20dBm. Power-down mode current: 4.2uA. Operating Range: 1Km Antenna Gain (peak): 2Dbi. 2MB rate (Open area): 520m. 1MB rate (Open area): 750m. 250Kb rate (Open area): 1100m. It uses 2.4GHz global open ISM band, with license free. SPI interface facilitates the communication with MCU I/O port....
Reference: RBD-0094
Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6.
Reference: RBD-0022
Affordable Price Operating Voltage: 5 V Sonar Sensing Range: 2-400 cm Max. Sensing Range: 450 cm Frequency: 40 kHz RoboticsBD
Reference: RBD-0291
Main chip: LM393, Electret condenser microphone Working voltage: DC 3.3-5V Induction distance is 0.5M Signal output Indication Single channel signal output The output effective signal is low level.
Reference: RBD-1349
For Standard LCD 16x2. Press here.For Standard LCD 16x2 with Male Header. Press hereFor Standard LCD 16x2 with Female Header. Press hereFor Standard LCD 16x2 with I2C adapter board soldered. Press here.For Standard LCD 16x2 with White Background. Press here.For Standard LCD 16x2 with Blue Background. Press here. Model: LCD1602 Interface: I2C Interface...
Reference: RBD-2158
Driver Chip: TB6560AHQ Operating Voltage: 10-35V Nominal Voltage: 24V With the large heat sink to ensure good heat dissipation 6N137 high-speed OptoCoupler, to ensure a high speed without step out.
Reference: RBD-0663
Power supply voltage(VCC): 2.0, 3, 5.5 V. Output high VOH: 0.8VCC V Output low VOL: 0.3VCC V Response time (touch mode) : 60 mS Response time (low power mode) : 220 mS Can replace the traditional touch of a button Four M2 screws positioning holes for easy installation RoboticsBD
Reference: RBD-1189
Wavelength: 850nm Emission Distance: 7 Meters / 23Ft Voltage: DC 1.2-1.3V Polarity: Anode (Longer Part) | Cathode (Shorter Part)
Reference: RBD-0685
Detection distance: 2 ~ 30cm Detection angle: 35 ° Comparator chip: LM393 3mm screw holes for easy mounting
Reference: RBD-0028
Based on the W5100Based on the Wiznet W5100 allows an Arduino board to connect to the internet. Stackable Design, can directly be supported by for Arduino official Ethernet Library. Supports up to four simultaneous socket connections Can be used to store files for serving over the network. Can be accessed using the Mini SD TF library. IEEE802.3af...
Reference: RBD-0108
Works with standard (dual 5/3.3V) and 3.3V-only (for example, Pro Arduino) boards. Complies with USB Specification Revision 2.0 (Full-Speed 12Mbps Peripheral, Full-/Low-Speed 12Mbps/1.5Mbps Host) Supports HID devices, such as keyboards, mice, joysticks, etc. Compatible with Mass storage devices, such as USB sticks, memory card readers, external hard...
Reference: RBD-0159
Provides a user-friendly interface that allows users to go through the menu, make selections etc. It consists of a 1602 white character blue backlight LCD. The keypad consists of 6 keys select, up, right, down, left and reset. To save the digital IO pins, the keypad interface only uses one ADC channel. The key value is read out through a 5 stage voltage...
Reference: RBD-0189
Brand: DFRobot
Xbee Shield for Arduino (without Xbee) INTRODUCTION: The XBee Expansion Board is a compliant solution designed to meet low-cost, low-power wireless sensor networks with special needs.The module is easy to use, low power consumption, and the provision of critical data between devices reliable transmission.
Reference: RBD-0270
AD/DA IO interface : screw terminal 1-WIRE interface : for connecting 1-WIRE devices like DS18B20 Sensor interface : for connecting various sensors 0.96inch OLED : SSD1306 driver, 128×64 resolution, SPI interface Buzzer CP2102 : USB TO UART converter PCF8591 : 8-bit AD/DA converter, I2C interface
Reference: RBD-0272
Brand: Waveshare
Voltage level: 1.8V-6V Dimension: 38mm x 31.6mm Conversion level range: 1.8 V-6 V Instructions for use: (3.3 V, 5 V to each other) 4 pairs of power supply interfaces, supports more situation Use tantalum capacitors for power filter, provides more stability VCCB 5V power supply (can be an external 5V power supply)
Reference: RBD-282
Specifications: - 3.3V and 5V dual power output- 3.3V and 5V IO compatible- USB2.0 protocol- BitBang mode ready- Easily connected to PC via mini USB cable- Support XBee-setting with software X-CTU
Reference: RBD-0306
Baud rate (USB): 115200 Baud rate (bluetooth, UART): 9600 Storage Flash capacity: 16M Mode to choose: 4 types Simultaneous controlling servo number: 32 channel Max action groups: 256 groups Communication agreement: UART Cross platform operation, can support WindowsXP, WindowsVisit, Windows7, Windows8, Windows10, Linux,FreeBsd, MAC OS, Android
