Get 3Pcs SSY Components + PCB Board Parts Laser Tube Transmitting Audio Receiving Kit Wireless DIY Audio Transmitting Transmitter Electronic Kit

Parameters:

 

Power supply voltage: 9V DC 

Receiver working voltage: 4 ~ 12V

Driving speaker working voltage: 0.5W-10W

Board size: Laser tube transmitting board (22 * 26mm)

                   Laser audio receiving (40 * 22mm)

 

Laser tube emission component list
Component name	Quantity
Resistance 100R	1
Resistance 51K	1
Ceramic capacitor 103	1
Electrolytic capacitor 100UF / 16V	1
Electrolytic capacitor 4.7UF / 50V	1
Audio port PJ3F07	1
Light emitting diode LED	1
NPN8050	1
Laser emission tube	1
Battery button	1
9V battery (optional)	1
PCB board	1

Audio receiving module component list
Component name	Quantity
Metal film resistor 1K	1
Metal film resistor 620K	1
Ceramic capacitor 104	2
Monolithic capacitor 224	1
Electrolytic capacitor 10UF / 25V	1
Electrolytic capacitor 100UF / 16V	3
Photodiode	1
Light emitting diode LED	1
2P terminal	1
horn	1
Battery button	1
IC Block-8P	1
LM386-DIP8	1
9V battery (optional)	1
PCB board	1

Package includes:

3 x Audio receiving kit

3Pcs SSY Components + PCB Board Parts Laser Tube Transmitting Audio Receiving Kit Wireless DIY Audio Transmitting Transmitter Electronic KitSee detail

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Get Digital Projection Alarm Clock LCD Display Voice Talking Home LED Projector

Description:
 

5 kinds of music alarms, built-in large speakers, the sound is clear and the volume is appropriate. Time 12/24 hour system can be switched, temperature display Fahrenheit / Celsius switch. With blue or green backlight. Support 24-hour voice timekeeping temperature throughout the day, support 15 hours of intelligent voice timekeeping temperature, support a group of music alarms, support snooze function at intervals of 10 minutes. One-button switch for time signal, snooze and alarm is very convenient. The projection is clear and the sound is loud.

Instructions:
 

1) mode is the function key, click to adjust the time, hr, min, min

               Press twice to adjust the alarm

               Press 3 times to adjust the hourly time signal option (hr) Alarm 24/15

               Start option (min)

2) Normal state Press hr to adjust 12/24 hours display switch

3) Long press the hr key and press the min key at the same time to switch between Fahrenheit / Celsius display

Specification:
 

Material: Plastic

Size: about 8 * 8* 10CM 

Color: Black/White

Power By: 3 AAA Batteries (not included)

Material: Plastic

Package included:
 

1 x Black/White Clock  (Not include batteries) 
 
Details Pictures:

Digital Projection Alarm Clock LCD Display Voice Talking Home LED ProjectorSee detail

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Get 3pcs R411B01 3.3V Auto RS485 to TTL RS232 Transceiver Converter SP3485 Module for Raspberry pi Breadboard Banana pi ESP8266

Specifications: 

 

Operating Voltage : DC 3.3V

Logic level  : 3.3V LvTTL  Logic level 

RS485 BUS IC : SP3485

Read and write automatic control IC :SM74HC04

Size : 17.9x11.7x2.8mm(

Weight : 0.7g

Wiring Diagram:

 

   

Application:

 

RS485 Temperature and humidity sensor

PTZ camera

LED controller

MODBUS RTU

RS485 Relay

485 sensor

automated manufacturing line

Wifi to RS485(ESP8266)

Bluetooth to RS485(HC-05/HC06)

Wireless Module to RS485(HC-11)

Ethernet to RS485( Ethernet TTL Module)

 

Package Included:

 

3 x R411B01 3.3V Auto RS485 to TTL RS232 Transceiver Converter

3pcs R411B01 3.3V Auto RS485 to TTL RS232 Transceiver Converter SP3485 Module for Raspberry pi Breadboard Banana pi ESP8266See detail

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Get AMG8833 MLX90640 IR Infrared Thermal Imager Array Temperature Measurement IR Thermal Imaging 2.4 Inch 24x32 Resolution Display Module

Overview:

1. Use MLX90640BAB infrared thermal imaging sensor

2. Resolution: 24x32

3. Temperature measurement range: -40 ° C ~ 300 ° C

4. Measurement accuracy: +/- 2 ° C (center area, 0 ~ 100 ° C)

5. Working temperature: 0-50 ° C

6. Refresh rate: 8HZ

7. No calibration required

8. Viewing angle: 35 ° x55 °

9. Emissivity: 0.1 ~ 0.95 adjustable

10. Display center point, maximum and minimum temperature

11. Built-in 1000mah rechargeable battery (full charge takes about 6 hours, full charge in about 2 hours) (not included)

12. Screen size: 2.4inch (display resolution: 240x320)

13. Product size (length, width and thickness): 50x154x 20mm

14. Power socket: Micro USB
 
 Instructions:

1. Charging: use Micro USB cable, 5V / 1A power supply

2. Power on / off: long press the small button next to the power socket

3. Setting: Press the middle button to enter the screen temperature range / reflectivity setting (the number is bright red), press the left and right buttons to adjust. Press the middle button again to confirm. The setting parameters will be saved automatically after all settings are completed.
 
 Package includes:
 
 1 x IR Infrared Thermal Imager

AMG8833 MLX90640 IR Infrared Thermal Imager Array Temperature Measurement IR Thermal Imaging 2.4 Inch 24x32 Resolution Display ModuleSee detail

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