2.4GHz Wireless Transceiver nRF 24L01 (85 meter)

ESP32 comes in the nodemcu structure we are familiar with, but it also offers bluetooth support.
Exciting for IOT applications, this ESP-WROOM-32 model has internal antenna, RF balun, power amplifier, low-noise amplifier, filters and power management unit.
It has 2.4 GHz dual-mode Wi-Fi and TSMC 40nm low power technology Bluetooth chips.

Specifications:

• High price/performance ratio.
• Suitable for embedded projects with its small dimensions
• It is quite powerful with LWIP protocol support and Freertos.
• Supports AP,STA and AP+STA modes
• Lua program supports

 
Steps:

•     Download and install the Arduino IDE.
•     Open https://github.com/espressif/arduino-esp32, install according to the explanation in the installation part.
•     Install the CP2102 driver for the serial communication chip.
•     Install the product on your computer with a USB micro cable.
•     Copy the test program below to the arduino IDE.
•     Select ESP32 Dev Module from Tools/Boards
•     Select the port where you plug the ESP32 into.
•     Press the BOOT button on the ESP32. Upload it on the Arduino IDE. It takes about 15 seconds. It is recommended to keep the BOOT button pressed during this time.
•     Open the serial terminal and select baud 9600 (normally 9600)
•     It will type the word Hello every second.

Useful Links:

• http://esp32.net/
• https://github.com/espressif/esptool
• https://github.com/esp32

The ESP8266 NodeMCU CP2102 board has ESP8266 which 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.

Features :

1. 11 b/g/n Wi-Fi Direct (P2P), soft-AP
2. Integrated TCP/IP protocol stack
3. Use CH340G to replace the CP2102.
4. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
5. Arduino-like hardware IO
6. Integrated low power 32-bit CPU
7. Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
8. Code like Arduino, but interactively in Lua script.
9. Nodejs style network API
10. Event-driven API for network applications,
11. which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.
12. Greatly speed up your IOT application developing process.
13. Lowest cost WI-FI
14. Less than WI-FI MCU ESP8266 integrated and easy to prototyping development kit.
15. We provide the best platform for IoT application development at the lowest cost.
16. Integrated TR switch, balun, LNA, power amplifier and matching network
17. Integrated PLL, regulators, DCXO and power management units
18. Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
19. Embeds logic level converter circuits
20. Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
21. Easy access to the GPIO pins for easy prototyping
22. ESP-12E Processor
23. Easy to use breadboard friendly form factor
24. Voltage Regulator / Converter, excellent DC to DC conversion, super-efficient

Package Includes :

1 x ESP8266 NodeMCU12E Lua WIFI Dev Board

Applications:

• Embedded Projects.
• Industrial Applications.
• Computer and Portable Devices.
• GPS receiver.

Features:

• Working current: matching for 30 mA, matching the communication for 8 mA.
• Dormancy current: no dormancy.
• Used for a GPS navigation system, water, and electricity gas meter reading system.
• With the computer and Bluetooth adapter, PDA, seamless connection equipment.
• Bluetooth module HC-08 Master and slave Two in one module.
• Use the CSR mainstream Bluetooth chip, Bluetooth V2.0 protocol standards.
• Potter default rate of 9600, the user can be set up.
• Bluetooth protocol: Bluetooth Specification v2.0+EDR
• Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps.
• Security: Authentication and encryption.
• Profiles: Bluetooth serial port.

Tutorials

Package Includes:

As you may be aware, ESP32 boards are more popular than you might think, and AI THINKER is one of the leading manufacturers of development boards, has introduced a line of ESP32 boards. The most distinctive feature is that Ai Thinker is the only brand that produces official ESp32 boards.

One of the brands that make IoT modules and antennas is Ai Thinker. Because of the Bluetooth and wifi features, this board is gaining popularity due to its programmable and CAM properties, which allow it to be programmed and used in a compact manner.

Pin Configuration:

ESP32-CAM is packaged in DIP and can be directly plugged into the backplane for quick production. It provides customers with a highly reliable connection method and is convenient for use in various IoT hardware terminals.

Connection Diagram:

Useful Links:

1. To use this module, you need to copy-paste the link given following in the Preference section of File Menu. Stable Link :  https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json . After that, click on OK.
2. Go to Tools->Boards->Boards Manager. Search ESP32. Install it.
3. Now, go to Tools. You will see “ESP32 Arduino”. Search “AI Thinker ESP32-CAM” , select it.
4. Go to  File->Examples->Examples for AI Thinker ESP32->ESP32->Camera->CameraWebServer.
5. Open that file and in that file, uncomment the line: #define CAMERA_MODEL_AI_THINKER .
6. Go to Tools. Do not change any configuration settings. Select correct COM port.
7. Finally, Compile and Upload the code. While uploading, as soon as you see the “Connecting…”, press Reset Button on module and release it. Then you will see code uploading progress.
8. Once it is uploaded completely, go to Serial monitor, Remove  GPIO0-GND jumper cable, again press Reset Button and then you can see the output.
9. Copy the IP address to a browser,  you will see a new window with functions for camera. Click on “Start Streaming” and then camera will be turned ON.
   

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Features:

1. Ultra-small 802.11b/g/n Wi-Fi + BT/BLE SoC module
2. Low-power dual-core 32-bit CPU for application processors
3. Up to 240MHz, up to 600 DMIPS
4. Built-in 520 KB SRAM, external 4M PSRAM
5. Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
6. Support OV2640 and OV7670 cameras with built-in flash
7. Support for images WiFI upload
8. Support TF card
9. Support multiple sleep modes
10. Embedded Lwip and FreeRTOS
11. Support STA/AP/STA+AP working mode
12. Support Smart Config/AirKiss One-click distribution network
13. Support for serial local upgrade and remote firmware upgrade (FOTA)

Package Includes:

1 x Ai-Thinker ESP32 CAM Development Board WiFi+Bluetooth with AF2569 Camera Module

This is FS1000A 433mHz Tx RF Radio Module. This RF module comprises an RF Transmitter and an RF Receiver. The transmitter/receiver (Tx/Rx) pair operates at a frequency of 433 MHz. An RF transmitter receives serial data and transmits it wirelessly through RF through its antenna connected at pin4.

The transmission occurs at the rate of 1Kbps – 10Kbps. The transmitted data is received by an RF receiver operating at the same frequency as that of the transmitter.

This low-cost RF transmitter can be used to transmit signals up to 100 meters (the antenna design, working environment, and supply voltage will seriously impact the effective distance). It’s good for a short distance, battery power device development. 433 MHz is the operating frequency for transmitter and receiver pair.

Features :

1. Wide input supply (2.5 V to 12V)
2. Easy to integrate (V+, GND, and Data)
3. The device in deep sleep mode when Data pin is grounded
4. Very small dimension.

Receiver Module specification

Operation voltage: DC5V
Static Current: 4MA
Receiver frequency: 433.92MHZ; 315 Mhz
Sensitivity：－105DB
Dimension：30*14*9mm
External Antenna：32CM signal wire，spiral

Transmitter Module Specification

Operating voltage: 3-12V
Operating frequency: 433.92MHz; 315Mhz
Standby current: 0mA
Operating current :20-28mA
Transmission distance:> 500m (open to receiving plate sensitivity at-103dBm distance of more than)
Output Power: 16dBm (40mW)
Transfer rate: <10Kbps
Modulation mode: OOK (Amplitude Modulation)
Operating Temperature: -10 ℃ ~ +70 ℃
Size: 19 × 19 × 8mm

Package Includes :

1 x FS1000A 433mHz Transmitter.

1 x FS1000A 433mHz Receiver.