Dalianda Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its product has launched a quad-axis aircraft-based solution based on Nuvoton products, including ARM Cortex-M4 based The 32-bit MCU M452 quad-axis aircraft solution is based on the high-speed 4T 8051 microcontroller N79E814 flight remote control solution and the Cortex-M0 32-bit MCU Mini54 BLDC ESC solution.
Nuvoton NuMicro M452 USB series is a new generation of 32-bit microcontroller based on ARM Cortex-M4 core, wide operating voltage (2.5V ~ 5.5V), industrial temperature (-40 ° C ~ 105 ° C), Built-in 22.1184MHz crystal oscillator (1% accuracy at 5°C, 5V), configurable Data Flash, strong anti-interference (ESD 8KV, EFT 4KV), package types are LQFP48, LQFP64 and LQFP100.
The N79E814 is a high-speed 4T 8051 microcontroller series featuring industrial temperature specifications, wide voltage operating range of 2.4V to 5.5V, 22.1184 MHz built-in RC crystal (1% accuracy), and built-in Data Flash, undervoltage detection, high Interference immunity (8KV ESD/4KV EFT), support for in-circuit system programming (ISP) and online circuit programming (ICP), with multiple options for TSSOP28, TSSOP20, SOP28 and SOP20.
The Mini54 is a Cortex-M0 32-bit microcontroller family featuring a wide voltage operating range of 2.5V to 5.5V and -40°C to 105°C operating temperature, and a built-in 22.1184 MHz high precision RC crystal (±1% accuracy, 25 °C 5V), built-in Data Flash, undervoltage detection, rich peripherals, integrated multiple serial transmission interfaces, high anti-interference capability (8KV ESD/4KV EFT), support for online system update (ISP), online circuit update ( ICP) and Online Application Update (IAP) are available in TSSOP20, QFN33 (4mm*4mm and 5mm*5mm) and LQFP48.
The Nuvoton four-axis aircraft main control board of the Grand Alliance is equipped with a 32-bit ARM Cortex-M4 M452 microcontroller, which supports runaway protection (automatic landing), and achieves flight control by controlling the ESC. The G-specific remote control module communicates with the remote control handle. M452's powerful computing power integrates 10-axis sensor results to ensure flight stability:
500Hz sensor fusion update rate
Support fixed height (barometer), headless mode (electronic compass)
Support flight attitude PID adjustment
Support automatic landing
Support sensor calibration
Support various sizes of wheelbase racks, wind load capacity
The aircraft's remote control equipment uses Nuvoton 4T 8051 N79E14 to control the direction and altitude of the quadcopter and its flight attitude:
2.4G wireless transceiver two-way transmission
Support automatic frequency hopping
Support automatic frequency, 8 games on the same field
Support low battery detection automatic alarm
Support flight control fine-tuning
Support fixed height, headless mode control
Support remote signal strength detection (RSSI)
Support flight control
Figure 1 - Da Lian Da Pin Jia launches a four-axis aircraft overall solution based on Nuvoton technology and products
Figure 2 - Dalian Dapinjia launches system framework diagram of four-axis aircraft motherboard and remote control solution based on Nuvoton technology and products
Figure 3 - Da Lian Da Pin Jia launches the system framework of the four-axis aircraft motherboard and remote control solution based on Nuvoton technology and products
Functional description
The main control uses the new Tang M452, connected to GPS, 2.4G RF, 9-axis sensor, pressure sensor, infrared sensor, ultrasonic sensor.
The handle control adopts the Xintang 8051 N79E814 to control the flight attitude of the aircraft.
The control handle communicates with the master via the SSV 2.4G radio.
The MINI54 series is used in the ESC section.
The open area controls up to 100 meters.
Figure 4 - Da Lian Da Pin Jia launches a photo of the overall solution of the four-axis aircraft based on Nuvoton technology and products
Important characteristics
Support high speed ESC (400Hz)
Support low battery detection
Support flight dynamic PID adaptation
SSV 2.4G RF
Open space control distance up to 100 meters
Support sensor calibration, gyroscope stabilization
Digital Resistive Touch Membrane Switch
Digital Resistive (Transparent Membrane Switch) digital switch
This touch switch is sometimes referred to as the X-Y matrix touch switch. Digital resistive touch switch are as easy to interface with a controller as a conventional matrix keyboard and popular when finger-sized touch zones are required.
To produce digital resistive touch switch, the ITO coating is etched away (or selectively applied) to form rows on one layer and columns on the opposite layer (Figure 1). When assembled, the rows and columns form a matrix of switches. The location of each switch is permanent, and the size cannot change. The resolution of the touch switch depends solely on the number of rows and columns.
Digital Resistive Touch Membrane Switch,Oval Type Membrane Switch,Two Circuit Layer Membrane Switch,Blue Background Membrane Switch
Dongguan Nanhuang Industry Co., Ltd , https://www.soushine-nanhuang.com