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SIM868 module is a complete Quad-Band GSM/GPRS module which combines GNSS technology for satellite navigation 24M

SIM868 module is a complete Quad-Band GSM/GPRS module which combines GNSS technology for satellite navigation 32M

arduino development bord Treedix 2pcs ATmega328P CH340 Development Board Compatible with Arduino UNO R3 Board Kit for Starter

The board is a microcontroller board based on the CH340. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. This is compatible board with an Atmega328p and a CH340G serial converter, 100% Compatible with Arduino UNO R3. This board has the following new features: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible with both the board that uses the AVR, which operates with 5V and with the Due that operates with 3.3V. The second one is a not connected pin, that is reserved for future purposes. Stronger RESET circuit. Friendly: the board is easy to use for Arduino starter, It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. We strive to put our hundred percent to meet your requirements and try our best to achieve your satisfaction!

RF System on a Chip - SoC SMD IC ESP32-D0WDQ6, Dual Core MCU, WiFi & Bluetooth Combo, QFN48-pin, 6*6mm

Overview:
This is WiFi serial transceiver module, based on ESP8266 SoC.
The SOC has Integrated TCP/IP protocol stack
We have a set of documents in Chinese. We are preparing tutorials and demo software to showcase utility of this module.
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.
ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

Corresponding Interface:
SDIO 2.0, SPI, UART
32-pin QFN package
Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
Integrated RISC processor, on-chip memory and external memory interfaces
Integrated MAC/baseband processors
Quality of Service management
I2S interface for high fidelity audio applications
On-chip low-dropout linear regulators for all internal supplies
Proprietary spurious-free clock generation architecture
Integrated WEP, TKIP, AES, and WAPI engines

Specification:
802.11 b/g/n
Wi-Fi Direct (P2P), soft-AP
Integrated TCP/IP protocol stack
Integrated TR switch, balun, LNA, power amplifier and matching network
Integrated PLLs, regulators, DCXO and power management units
+19.5dBm output power in 802.11b mode
Power down leakage current of <10uA
Integrated low power 32-bit CPU could be used as application processor
SDIO 1.1/2.0, SPI, UART
STBC, 1×1 MIMO, 2×1 MIMO
A-MPDU & A-MSDU aggregation & 0.4ms guard interval
Wake up and transmit packets in < 2ms
Standby power consumption of < 1.0mW (DTIM3)

Description
1. Support 802.11 B/G/N
2. Communication range up to 100 yards depending on environment.
3. Standard 3.3VDC operation with 5V compatible I/O.
4. Standard 3 wire (TXD/RXD/GND) serial communication (idle high) at 115200/8/N/1.
5. Standard 0.1" (2.54mm) half through hole.
6. Upgradeable firmware.
7. Three mode of operations: Client/Access Point/Both Client and Access Point.
8. Support all major security schemes: OPEN/WEP/WPA_PSK/WPA2_PSK/WPA_WPA2_PSK.
9. Support both TCP and UDP communication.
10. Working as TCP/UPD server supports up to five (5) connections.
11. Working as station can connect up to 5 TCP/UPD servers. The ESP-04 can connect to all standard non-SSL websites in the world.
12. Simple AT commands for all operations.
13. Connection based data reception or transparent data reception.
14. Programmable client connection inactivity timeout.
15. Automatic domain name address resolution for public domain name but not the local name within the local area network (router).

Description:
1X(The ESP8266 is a chip highly designed for the needs of a new connected world.
It offers a complete and self-contained Wi-Fi network solution, allowing you to either host the application or download all Wi-Fi network functions from another application processor.
Its high degree of integration on the chip allows minimal external circuitry, and the complete solution, including the input section module, is designed to occupy a minimum area of PCB.
Dimensions: 4 x 3 x 0.3 cm
Color: Blue; 100% New and high quality. This product is your best choice. Do not hesitate. It is time to replace your old, worn, damaged product.
Materials: CCL
Warnings:
This module requires a voltage supply of 3.3 for VCC, and 3.3V of logic.
Can not accept 5V.
Connecting the RX or TX over 5V Arduino will destroy this module.
You must use a logic level converter, or a 3.3V for Arduino
The supply of 3.3V on the Arduino Uno has an inadequate current capacity to power this module.
It must provide a separate power supply and higher than 3.3V (approximately 300mA or better)
Package includes:
1 x Wireless WiFi Remote Transducer Module ESP8266 Serial Esp-07 LWIP AP + STA
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.)

Features:
SDIO 2.0, SPI, UART , 32-pin QFN package , Integrated RF switch, balun, 24dBm PA, DCXO, and PMU , Integrated RISC processor, on-chip memory and external memory interfaces , Integrated MAC/baseband processors , Quality of Service management
I2S interface for high fidelity audio applications , On-chip low-dropout linear regulators for all internal supplies , Proprietary spurious-free clock generation architecture , Integrated WEP, TKIP, AES, and WAPI engines Solutions
Specifications: 802.11 b/g/n , Wi-Fi Direct (P2P), soft-AP , Integrated TCP/IP protocol stack , Integrated TR switch, balun, LNA, power amplifier and matching network , Integrated PLLs, regulators, DCXO and power management units , +19.5dBm output power in 802.11b mode
Power down leakage current of <10uA , Integrated low power 32-bit CPU could be used as application processor , SDIO 1.1/2.0, SPI, UART , STBC, 1?1 MIMO, 2?1 MIMO , A-MPDU & A-MSDU aggregation & 0.4ms guard interval , Wake up and transmit packets in < 2ms , Standby power consumption of < 1.0mW (DTIM3)

Description:
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. , ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

Overview:
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.

Description:
Breakthrough design, there are new breakthroughs, based on ESP-12E.
The new four-layer board design.
The new revision antenna RF performance optimization, communication distance is increased by 30% -50% compared to ESP-12E!
Semi-hole chip technology, the whole IO leads, with metal shielding shell
Passed FCC & CE & RoHS certification
Built-board PCB antenna
4M bytes SPI Flash for programming.
ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

Features:
Standards Certification: FCC / CE / TELEC
Wireless standards: 802.11 b / g / n
Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M)
Data interface: UART / HSPI / I2C / I2S / Ir Remote Contorl GPIO / PWM
Operating voltage: 3.0 ~ 3.6V (recommendation 3.3V)
Working Current: Average: 80mA
Operating temperature: -40 ° ~ 125 °
Storage temperature: Nomal temperatu

Brand new and high quality. Chip board ENC28J60-I/SO. The board 25MHZ crystal. The network interface board HR911105A. 3.3 V supply pin. Debug reminder: 1, the IP address of the computer to a network segment and module such as IP module 192.168.1.2, IP computer set: 192.168.1.3; 192.168.1 is the 3 section; 2, the network cable connected to the mouth of the computer network module and mouth; (that is, the cable network 1 3,2 , and then do not understand that there are pictures Baidu); 3, the module and the MCU connection should pay attention to the connection of each line is reliable (the surface is not even connected to the good); 4, and the MCU port IO to confirm that is right; 5, the program recompile, download, confirm whether to download! STM32 and 51 IO size:48 x 18mm Material:plastic colour:blue Package Contents: 1 x Ethernet Shield Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

Product Parameter:
Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48. Sound quality,stereophonic;
24 bit DAC output, internal DSP hard decoding, non PWM output, dynamic range support 90dB,signal-to-noise ratio support 85dB;
Fully support FAT16,FAT32 file system, support 32G TF Card,support 32G U disk;
A variety of control mode, UART serial mode, serial port mode, AD button control mode;
The broadcast language can be used to suspend the playing background music, support the song play under the specified path, support the cross disc sowing, and support the early end of the broadcast;
Specify time to play;
Specify a disc play, and a specified repertoire is played 30 level volume adjustable, 5 EQ adjustable.（NORMAL—POP—ROCK—JAZZ--CLASSIC）;
Specify a path to play (in support of Chinese and English);
Folder switching;
Specified time period;
Supports computer sound card control and USB mass storage;
Supporting triggers cannot interrupt playback;
Introduction:
N9200B is a MP3 chip that provides serial port,which perfectly integrates MP3 and WMV hard decoder chips.
It includes the N9200A and N9200B Music MP3modules,and the software supports TF driver, supports the computer to update the content of SPI-flash directly, and supports the FAT16 and FAT32 file systems.
Through a simple UART serial command or a first-line serial port instruction to play the specified music, and how to play music and other functions, without the tedious underlying operation, good sound quality, easy to use, stable and reliable is the biggest feature of this product.
In addition, the chip is also a product of deep customization, which is a low-cost solution for fixed voice playback.

Feature: ► Brand new and high quality. ► High sensitivity for low-light operation. ► Low operating voltage for embedded application. ► Standard SCCB interface compatible with I2C interface. ► Raw RGB, RGB (GRB4:2:2, RGB565/555/444),YUV(4:2:2) and YCbCr(4:2:2)output format. ► Support VGA, CIF and from CIF to 40 x 30 format. ► Vario Pixel method for sub-sampling. ► Auto Image Control: AEC, AGC, AWB, ABF, ABLC. ► Image Quality Control: Color saturation, hue, gamma, sharpness and anti-blooming. ► ISP includes noise reduction and defect correction. ► Support image scaling. ► Lens shading correction. ► Flicker 50/60Hz auto detection. ► Color saturation level auto adjust. ► Edge enhancement level auto adjust. ► De-noise level auto adjust. Parameter: ► Photosensitive Array: 640 x 480. ► IO Voltage: 2.5V to 3.0V. ► Operating Power: 60mW/15fpsVGAYUV. ► Sleeping Mode: <20μA. ► Operating Temperature: -30 to 70 deg C. ► Output Format: YUV/YCbCr4:2:2 RGB565/555/444 GRB4:2:2 Raw RGB Data (8 digit). ► Lens Size: 1/6". ► Vision Angle: 25 degree. ► Max. Frame Rate: 30fps VGA. ► Sensitivity: 1.3V / (Lux-sec). ► Signal to Noise Ratio: 46 dB. ► DynamicRange: 52 dB. ► Browse Mode: By row. ► Electronic Exposure: 1 to 510 row. ► Pixel Coverage: 3.6μm x 3.6μm. ► Duck Current: 12 mV/s at 60℃. ► PCB Size (L x W): Approx. 1.4 x 1.4 inch / 3.5 x 3.5 cm

Features
LoRaTM spread spectrum communication
+20dBm - 10mW. Stable RF output power when input voltage changed
Half-duplex SPI communication
Programmable bit rate can reach to 300kbps
Support FSK, GFSK, MSK, GMSK, LoRaTM and OOK Modulation Mode
127dB RSSI wave range.
Automatically detect RF signal, CAD mode, and super high-speed AFC
With CRC 256 bytes data engine
Half hole (castellated hole) SMD package
With metal shielding case
Spring antenna

Specifications
Wireless Standard: 433MHz
Frequency range: 420 - 450MHz
Port: SPI/GPIO
Operating Voltage: 1.8 - 3.7V, default 3.3V
Working Current, Receive: less than 10.8mA (LnaBoost closed, Band 1)
Transmit: less than 120mA (+20dBm),
Sleep model: 0.2uA
Working temperature: -40- +85 degrees
Pin pitch: 2.0 mm

Product description

How to Use:
Connect the power supply and the load, then you can supply to the controller.
It displays the measured temperature, press SET key, the display temperature flashing, press"+" "-" to set the desired temperature. After finished, press SET to confirm and back.
Now the controller automatically performs the relay by setting off.
This temperature controller output is 10A relay, meeting various high-power loads, please make sure the wires are connected correctly.
Indicator, LED State Instruction:
Indicator: OFF indicates the relay is switched off; ALWAYS indicates the relay is closed.
LED: shows LL means the sensor opens; shows HH means it's out of range, the thermostat will be forced to close the relay, the display --- as high temperature protection.

Specifications:
Temperature Range: -50~110°C
Resolution: 0.1°C(-9.9~99.9°C), 1°C(Other Ranges)
Accuracy: 0.1°C
Refresh Rate: 0.5s
High Temperature Protection: 0~110°C
Input Power: DC 12V
Static Current: ≤35mA, Attract Current: ≤65mA
Measurement Input: NTC(10K 0.5%) Waterproof Type Sensor
Output Range: 1 Channel 10A Relay Output
Environment: -10~60°C， Humidity: 20%-85%
PCB Board Size: 48 * 40mm / 1.9 * 1.57in
Package Weight: 26g / 0.93oz