LED matrix module 32x8 red MAX7219 SPI

5V Relay Module with 8 opto-coupled channels.
This module can be directly controlled by the microcontroller ( Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL).
8 Channel Arduino 5V 10A Relay Module features:

- Channels: 8 (independent protected with Optocouplers)
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Isolation: Yes
- LED indicator: For each channel
- Dimensions: 54x 135mm

This module is a three way switch ( COM, NO and NC ) that uses the intensity of the ambient light to control directly the load at the output. Its adjustment potentiometer allows changing the sensitivity and setting the start threshold of the relay. The relay is energized when it is darker than the threshold.

WiFi Smart Wall Switch Sonoff T1 Gang 86

Smart WiFi RF APP Touch Control Wall Light Switch features:
works with Amazon Alexa,  Google Assistant DIY Smart Home, Nest  via iPhone Android.

2 meter LED strip easily installed for use with Sonoff controllers via WiFi and RF. Great lights to create any ambience in any room. Change their colour and rhythm from your mobile or controller. Dance to the rhythm of the lights, copy the colour from your mobile or control the lighting with your voice assistant like Alexa or Google Home. Decorate your home with an infinite number of possible scenes. (Controller and adapter not included)

Small peristaltic pump is a type of hydraulic positive displacement pump used for pumping a variety of fluids.

Allows control: - Up to 2 bidirectional current motors
- Or 1 stepper motor Shield is compatible with NodeMcu ESP8266 CP2102 WIFI Development Board ESP8266 WiFi Motor Drive L293D Expansion Shield Board ESP12E NodeMcu features:
- Minimum operating voltage: 4.5 V
- Maximum operating voltage: 36 V
- Maximum current: ± 1.2 A
- Logic voltage: - 2.3V <= HIV <= VIN (high)
                        - 0.3V <= VIL <= 1.5V (low)
- Controller L293D
- Measures: 58x42 mm ESP12 port control kit: - D1, D3 - motorA
- D2, D4 - motorB

NodeMcu module based on ESP8266 controller and programming in Lua language
NodeMcu is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC
ESP8266-12E is an improved version of ESP8266-12
It works as a standard WiFi 802.11 b / g / n 2.4 GHz
USB Communication - CP2102 Chip
Characteristic:
ESP 12E ESP8266 ESP12E NodeMcu Lua Wireless Development Board CP2102 WiFi features:

- Supply voltage: 3.3V (LOGICAL LEVELS: 3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz) - Wi-Fi Direct (P2p), Soft Access Point
- Integrated TCP / IP stack
- PLL, regulators and integrated power management units
- Output power: 0 , 15 (W); + 19.5dBm in 802.11b mode

You can easily control any device over the Internet through your phone, computer, etc.
The module can handle 5 users at the same time, it can work in two modes: STA (client) and AP (access point).
In AP mode, the module is connected via WIFI directly to your phone or computer (in open field can be up to 300 meters).
In STA mode, the relay module is connected to the access point (router) that supplies the network.
Wi-Fi in the room where the relays are located. In this case, the range mainly depends on the power of the access point antennas (routers).
You should not turn off after the configuration is completed, as some of the parameters of the WIFI module cannot be saved when power is cut off.

Characteristic:
- Channels: 4 (independent protected by Optocouplers)
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Isolation: Yes
- Indicator LED: For each channel
- Dimensions: 54x 72mm
- 5V Optocoupled 4-Channel Relay Module
- This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
User manual for the remote control + 4-channel 315 MHz IC2262 receiver:
- Relay Module Programming 5V 10A 4 Channel with remote control + 4 channel receiver

The ESP32-CAM is a camera module with the ESP32-S chip. It features an OV2640 camera, several GPIOs to connect peripherals, and microSD card slot.