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RAMSUN provides mature network protocol stack supporting Bluetooth MCU, rich sample codes and multi-platform APP tools. Some chip models can be used without secondary development; Provide characteristic Bluetooth/serial /USB three-way chips to empower more complex wireless applications.

Commercial lighting solutions
	Application case description: • Multi-channel, > 16bit pwm • OTA function • Constant power supply, no power consumption requirements • Flash frequently erases and records the state of the lamp to prevent power failure. • BLE_MESH/ proprietary MESH/2.4G bottom interface • Millimeter-wave radar scene requires MCU to have strong computing power (FFT). Advantages: • 2.4G interface open. • BLE Flexible Customization OTA • 26bit/16bit pwm • Large-scale commercial success stories
Smart meter solution
	Application case description: • BLE is convenient for users to recharge directly, which is very convenient compared with the traditional IC card method. • BLE can use local networking to realize low-cost centralized reading/monitoring of users' electricity consumption. • BLE OTA facilitates firmware maintenance and solves problems. • No low power consumption requirements • Use ble local networking centralized copy, and individual users need NBIOT/cat1 centralized copy. • If the power consumption is calculated by GPIO external interrupt, it can respond to the interrupt when writing flash. • Some have LCD requirements. Advantages: • Provide flexible local networking mode to facilitate customers to realize local centralized reading. • Single chip solution of BLE+LCD • A large number of successful cases
Bluetooth water meter solution
	Application case description: • BLE is convenient for meter reading, (NB-IOT has 5% bad signal), and Bluetooth centralized reading cost is low. • The maintenance is convenient, and the traditional infrared has high requirements on the shell technology, and its use is relatively limited. • Users can directly recharge (can be drawn) • Low power consumption, design > 6 years (no battery replacement, worse environment) • Most of them need to add LCD • Usually you have to bring NBIOT or LORA copy, and some of them don't, just use ble copy. • The mechanical watch obtains water through Hall. • Ultrasonic meter obtains water quantity through serial port. • Infrared communication /125K smart card communication (optional) • The space of water meter circuit board is small, and the integration scheme is more urgent.

Instrument Solution for Electric Vehicle/Scooter
	Application case description: • Multiple IO requirements • Need to write flash frequently, and when writing flash, need to respond to interrupts • Bluetooth proximity unlock required • Need to receive remote control and tire pressure data • Some require voice playback Advantages: • More IO • Write flash that can respond to interrupts • Bluetooth proximity unlock • 2.4G and BLE run simultaneously, providing flexible reception of remote control and tire pressure data • Can play voice with only 2 IO and an external amplifier costing 2 cents

Bluetooth medical detection related solutions
	Application case explanation: • Applications include blood glucose meters, oximeters, blood pressure monitors, thermometers, drug/alcohol/virus rapid testing • Biochemical analysis generally uses electrochemical detection, which is completed by using operational amplifiers in conjunction with ADCs to measure test strips • LCD is generally required, with a higher number of points required • Long certification cycle for medical products • CGM products have relatively high market expectations in the future Advantages: • Low power consumption • Unrestricted export certification • QFN48 package, with more 40 GPIO pins, offers more choices compared to general transparent transmission, and can be used as SOC

For more product solutions, please contact us，Welcome to inquire:+86-137-5119-2923 Phone:+86-0755-6665 8299 Email：sales@sramsun.com

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Smart meter solution

Bluetooth water meter solution

Instrument Solution for Electric Vehicle/Scooter

Bluetooth medical detection related solutions

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