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4 inch Touch LCD Shield for Arduino

Features
1. Resistive touch screen TFT LCD, 4inch, 480x320 resolution
Standard Arduino interface, compatible with development boards like : Arduino UNO, Leonardo, UNO PLUS, NUCLEO, XNUCLEO
Onboard stand-alone touch controller, better touching than solutions that use AD pins directly for touch control
PWM backlight control, allows to adjust the backlight to a comfortable level
Micro SD slot, provides an easy way to store photos for displaying
Controlled via SPI, only a few Arduino pins are used
Comes with STM32 and Arduino examples, convenient for porting

A$45.34 A$56.66

Features
1. Resistive touch screen TFT LCD, 3.5inch, 480x320 resolution
Standard Arduino interface, compatible with development boards like : Arduino UNO, 3. Leonardo, UNO PLUS, NUCLEO, XNUCLEO
Onboard stand-alone touch controller, better touching than solutions that use AD pins directly for touch control
PWM backlight control, allows to adjust the backlight to a comfortable level
Micro SD slot, provides an easy way to store photos for displaying
Controlled via SPI, only a few Arduino pins are used
Comes with STM32 and Arduino examples, convenient for porting

A$39.55 A$48.65

Features
1. Resistive touch screen TFT LCD, 2.8inch, 320x240 resolution
Standard Arduino interface, compatible with development boards like : Arduino UNO, 3. Leonardo, UNO PLUS, NUCLEO, XNUCLEO
Onboard stand-alone touch controller, better touching than solutions that use AD pins directly for touch control
Micro SD slot, provides an easy way to store photos for displaying
Controlled via SPI, only a few Arduino pins are used
Backlight adjustable by program, lower power consumption
Key Parameters

A$30.69 A$37.13

14 digital input/output ports: RX, TX, D2-D13
8 analog input ports: A0-A7
1 pair of TTL level serial transceiver ports: RX/TX
6 PWM ports: D3, D5, D6, D9, D10, D11
Clock frequency: 16MHz
Using Atmel Atmega328P-AU microcontroller
Support serial port download, support external 3.3V-12V DC power supply, support 9V battery power supply.
The professional version of Mini Pro is a microcontroller board which has 14 digital input/output pins (6 of which can be used as PWM outputs), 8 analog inputs, a 16MHz resonator, a reset button, and mounting holes pin header

A$13.15 A$16.18

14 digital input/output ports: RX, TX, D2-D13
8 analog input ports: A0-A7
1 pair of TTL level serial transceiver ports: RX/TX
6 PWM ports: D3, D5, D6, D9, D10, D11
Clock frequency: 16MHz
Using Atmel Atmega328P-AU microcontroller
Support serial port download, support external 3.3V-12V DC power supply, support 9V battery power supply.
The professional version of Mini Pro is a microcontroller board which has 14 digital input/output pins (6 of which can be used as PWM outputs), 8 analog inputs, a 16MHz resonator, a reset button, and mounting holes pin header

A$13.15 A$15.39

LED brightness adjustment, frequency and duty cycle can be adjusted
Motor speed adjustment, frequency and duty cycle are adjustable
Drive the solenoid valve to engage and release, automatically cycle, delay output, cycle number (or infinite cycle) can be set
Control the on and off of equipment, conduct switch fatigue tests, voltage sag and other tests to verify the reliability of customer equipment
Delay start load, the delay time can be set, it will always be on or work intermittently after the delay
Can directly drive LEDs, motors, solenoid valves and other loads
Two modes can be selected: PWM mode - frequency (continuous), duty cycle, and number of pulses are adjustable; PULSE pulse mode - positive pulse width time, negative pulse width time, power-on delay start time, pulse The number is adjustable
Equipped with start and stop buttons to control signal output and stop

A$13.64 A$15.96

STM32F103C8T6: It is a model with a high market share in the single-chip microcomputer market, and is widely used in electronic design competitions, smart cars, robots, flight control, industrial control and other fields
GD32F103C8T6: It is a domestic alternative to STM32F103C8T6. The peripheral pins are exactly the same as 3. STM32F103C8T6. It is equipped with a new generation of Cortex M3 core, with higher CPU frequency, lower power consumption and higher cost performance.
STM32F103RCT6: Contains all the pins of STM32F103C8T6 and some other peripheral pins, which can directly use the STM32 large-capacity standard library
APM32E103RET6 is a domestic alternative to STM32F103RCT6. It has a higher main frequency clock and lower operating power consumption. The built-in flash is 2 times that of RCT6, and the SRAM is 2.7 times that of RCT6. It is more cost-effective
The board is equipped with STM32 small system circuit, among which STM32F103RCT6 and APM32E103RET6 are also equipped with a 6-axis IMU on board, which can be used to obtain motion attitude
The core board leads to all 1/0 port resources
With SWD simulation debugging download interface, compared with traditional JTAG debugging, it is more reliable in high-speed mode, and the probability of download failure is smaller
Immersion gold technology, small size, reasonable and standardized layout and routing, high-quality SMD crystal oscillator, high quality

A$9.33 A$11.28

STM32F103C8T6: It is a model with a high market share in the single-chip microcomputer market, and is widely used in electronic design competitions, smart cars, robots, flight control, industrial control and other fields
GD32F103C8T6: It is a domestic alternative to STM32F103C8T6. The peripheral pins are exactly the same as 3. STM32F103C8T6. It is equipped with a new generation of Cortex M3 core, with higher CPU frequency, lower power consumption and higher cost performance.
STM32F103RCT6: Contains all the pins of STM32F103C8T6 and some other peripheral pins, which can directly use the STM32 large-capacity standard library
APM32E103RET6 is a domestic alternative to STM32F103RCT6. It has a higher main frequency clock and lower operating power consumption. The built-in flash is 2 times that of RCT6, and the SRAM is 2.7 times that of RCT6. It is more cost-effective
The board is equipped with STM32 small system circuit, among which STM32F103RCT6 and APM32E103RET6 are also equipped with a 6-axis IMU on board, which can be used to obtain motion attitude
The core board leads to all 1/0 port resources
With SWD simulation debugging download interface, compared with traditional JTAG debugging, it is more reliable in high-speed mode, and the probability of download failure is smaller
Immersion gold technology, small size, reasonable and standardized layout and routing, high-quality SMD crystal oscillator, high quality

A$18.77 A$22.91

Support development environment, such as ESP-IDF, Arduino, MicroPython, etc.
240MHz Xtensa 32-bit LX7 dual-core processor
Easy to integrate, 32-bit LX7, 2MB PSRAM, wireless network, dual-core processor
Using ESP32-S3R2 chip, Xtensa 32-bit LX7 dual-core processor, running frequency 240mhz
Integrated 512KB SRAM, 384KB ROM, 2MB PSRAM, 16MB flash memory
Integrated 2.4GHz Wi-Fi and Bluetooth LE dual-mode wireless communication, with excellent RF performance
Type-C connector, more convenient to use
The onboard CH343 and CH334 chips can meet the needs of USB and UART development through the Type-C interface

A$23.32 A$26.82