HPD322 two-phase stepper motor driver is a cost-effective subdivision driver designed based on PI flow control algorithm. It has excellent performance, high speed and large torque output, low noise, low vibration and low heat.
The operating current and subdivision can be selected through the dial switch. There are 16 subdivisions and 16 currents to choose from. It has overvoltage, undervoltage, phase current and total current overcurrent protection. Its input and output control signals are all photoelectric. isolation.
Signal input: single-ended, pulse + direction and double pulse;
Built-in micro-subdivision; the maximum power supply can reach DC36V; the current is easy to set, 16 levels are optional, the output current peak can reach 2.2A; the current is halved after 1S of inactivity
Optically isolated differential signal input, the maximum input pulse frequency is 300KHz;
The pulse, direction and enable terminals all have constant current input functions and can be directly connected to the input signal without adding an external series resistor for voltage reduction and current limiting protection.
High reliability: using multi-layer boards and surface mount sealing, leaving sufficient margin for power devices
Polymer lithium-ion battery 7.4V 1500 mAh, built-in power management chip to avoid overcharging, protect the battery and extend battery life.
Bluetooth SOC solution and Bluetooth link compatibility are better and more stable.
Bluetooth mode and protocol: Bluetooth 4.0 dual-mode Bluetooth (BR/EDR+BLE), 55 meters of open space.
Charging port: TYPE-C interface, which is common with mobile phone charging cables to prevent the traditional miniUSB port cable from being lost and unable to charge.
Rubber stopper protection design to prevent water and dust from entering.
Polymer lithium-ion battery 7.4V 1500 mAh, built-in power management chip to avoid overcharging, protect the battery and extend battery life.
Bluetooth SOC solution and Bluetooth link compatibility are better and more stable.
Bluetooth mode and protocol: Bluetooth 4.0 dual-mode Bluetooth (BR/EDR+BLE), 55 meters of open space.
Charging port: TYPE-C interface, which is common with mobile phone charging cables to prevent the traditional miniUSB port cable from being lost and unable to charge.
Rubber stopper protection design to prevent water and dust from entering.
Polymer lithium-ion battery 7.4V 1500 mAh, built-in power management chip to avoid overcharging, protect the battery and extend battery life.
Bluetooth SOC solution and Bluetooth link compatibility are better and more stable.
Bluetooth mode and protocol: Bluetooth 4.0 dual-mode Bluetooth (BR/EDR+BLE), 55 meters of open space.
Charging port: TYPE-C interface, which is common with mobile phone charging cables to prevent the traditional miniUSB port cable from being lost and unable to charge.
Rubber stopper protection design to prevent water and dust from entering.
Kids-Friendly Material: Made of safe and harmless ultra-light food-grade EVA foam material, in case baby to munch on the tablet,can withstand considerable wear and tear, and provide excellent shock and drop protection. Easy to clean, durable, practically unbreakableSuper lightweight is very suitable for children Boy Girl.
Safe-tested: This EVA rugged case can protection against child rough throws and falls on the floor and against the walls from unforgivable heights. The foam creates enough of a lip all the way around to protect the screen too,which is a must in baby family.
Convenient Handle and Kickstand: The top handle was very easy for Kids small hands to grip securely and comfortably. With kickstand for the kiddo can prop up the tablet while watching a video, pre-K learning or playing an educational games. There is a slot in the tablet for the stylus, which should reduce the possibility of it being lost.
Full Protection: Raised screen bezel edges, thick foam fully covers the back, sides and extends above the surface of the tablet screen, which means that the screen will remain safe from scratches if laid on its face
Designed For Kids: Cute and beautiful fly design, open the wings to become a stand,Your baby will squealed with delight when they saw it.Considering if you have kids who are tablet users which can prolong the device by having a protective case.
The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption.
Built-in LNA and SAW filters to achieve high sensitivity and strong anti-interference ability.
Use dual-frequency positioning and RTK technology to meet centimeter-level high-precision positioning requirements.
Suitable for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart agricultural machinery, and shared two-wheelers.
Standard Raspberry Pi 40PIN GPIO expansion header, supports Raspberry Pi series boards and Jetson Nano
Supports simultaneous tracking of L1+L5 dual-frequency satellite signals, reducing the multipath effect in urban canyons and improving positioning accuracy.
Supports concurrent reception of multiple GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption
Built-in low-noise amplifier and acoustic surface filter to achieve -165dBm high sensitivity and enhanced anti-interference performance