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5pcs HC-SR04 Ultrasonic Sensor Distance Sensor with Ultrasonic Transmitter and Receiver Module Compatible with Ar-duino UNO MEGA2560 Nano Robot XBee ZigBee

Induction Angle: not more than 15 degrees:....
the module HC-SR04 works: (1) IO trigger ranging to at least 10us high signal.
(2) module automatically sends eight 40kHz square wave, automatically....
Panel wiring, VCC, trig 's (control side), the echo (receiving end), out (empty feet), GND.
Note: TRIP-pin internal pull-up 10K resistor, down TRIP microcontroller IO port pin, and then to a 10us pulse signal..
OUT pin for this module as the switch output pin when the anti-theft module, ranging modules do not use this foot!.

The Compute Module 4 IO Board is a companion board for all variants of Raspberry Pi Compute Module 4(supplied separately). It is designed for use both as a development system for Compute Module 4 and as an embedded board integrated into end products..
The Compute Module 4 IO Board is designed to allow you to create systems quickly using off-theshelf parts such as HATs and PCIe cards, which might include NVMe, SATA, networking, or USB. The major user connectors are located along one side to make enclosures simple..
Connectors: Standard Raspberry Pi HAT connectors with PoE support. Standard PCIe Gen 2 x1 socket. Various jumpers to disable specific features, e.g. wireless connectivity, EEPROM writing..
RTC : Real-time clock with battery socket and ability to wake Compute Module 4 Video: 2 x MIPI DSI display FPC connectors (22-pin 0.5 mm pitch cable) Camera: 2 x MIPI CSI-2 camera FPC connectors (22-pin 0.5 mm pitch cable).
USB: 2 x USB 2.0 connectors. Micro USB socket for updating Compute Module 4. Ethernet: Gigabit Ethernet RJ45 with PoE support..

2.8 inch TFT LCD color screen, support 65K color display, and the display is colorful, high quality image display and wide viewing angle..
With PCB board (including power supply IC, touch IC, SD card cage) compatible 5110 interface. At least 4 IO driver are needed (without touch) , at least 9 IO driver are needed( with touch)..
This 2.8-inch LCD module uses ILI9341 drive chip to drive 240*320 dot , with 240*320 resolution..
On-board level translation programs truly perfectly compatible 5V / 3.3V IO level, supports a variety of single-chip IO connection, professional and practical..
We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time..

?2.8 inch color screen, support 65K color display, and the display is colorful.
?With PCB board (including power supply IC, touch IC, SD cardcage) compatible 5110 interface.
?At least 4 IO driver are needed (without touch) , at least 9 IO driver are needed( with touch).
?This 2.8-inch LCD module uses ILI9341 drive chip to drive 240*320 dot , with 240*320 resolution.
?The module is equipped with voltage stabilized IC to support 3.2v /5V power supply.

【30VDC 250VAC Load】 Equiped with high-current relay, AC250V 10A.
DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO..
【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc..
【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection..

With PCB board (including power supply IC, touch IC, SD cardcage) compatible 5110 interface.
At least 4 IO driver are needed (without touch) , at least 9 IO driver are needed( with touch).
This 2.8-inch LCD module uses ILI9341 drive chip to drive 240*320 dot , with 240*320 resolution.
The module is equipped with voltage stabilized IC to support 3.2v /5V power supply.
2.8 inch color screen, support 65K color display, and the display is colorful.

HC-SR04 Ultrasonic Sensor Distance Module: using IO trigger for at least 10us high level signal.
This module has stable performance and accurate measurement distance..
Detection distance: 0.78~196 in/ (2cm~500cm).
This module is fully Compatible with GH-311 anti-theft module..
HC-SR04 Ultrasonic Sensor Distance Module for Nano Robot XBee ZigBee by ElecRight.

MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits.
MAX7219 digital display control module, you can use it..
The module is compatible of 5V / 3.3V microcontroller.
Only three IO ports are used to drive the eight digit display..
Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays.
PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen..
Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01.
Digital tube is 0.36 inch 4-bit integrated cathode digital tube.
Note:VCC and GND do not reversed, it would burn the chip.51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines..

Using IO trigger for at least 10us high level signal.
The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
IF the signal back, through high level ,time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level....
Power supply :5V DC, quiescent current : .

...er supply IC, touch IC, SD card cage) compatible 5110 interface. At least 4 IO driver are needed (without touch) , at least 9 IO driver are needed( with touch). 2.8 inch TFT LCD color screen, support 65K color display, and the display is colorful, high quality image display and wide viewing angle..
This 2.8-inch LCD module uses ILI9341 drive chip to drive 240*320 dot , with 240*320 resolution..
On-board level translation programs truly perfectly compatible 5V / 3.3V IO level, supports a variety of single-chip IO connection, professional and practical..
We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time..
Buy it Confidence: Let you feel safe using, so you have a better using experience. Great value for money. If you have any problems, please fell free to contact us anytime. Our team will help you solve the problem as soon as possible..