APM32E103-Based LED Controller Solution

Smart?LED?light?strips?have?become?a?cornerstone?in?architectural?design,?home?decoration,?and?beyond.?With?the?continuous?advancements?in?smart?home?systems?and?IoT?technology,?these?strips?have?greatly?evolved,?offering?enhanced?features?such?as?extended?lighting,?precise?dimming,?consistent?color?temperature,?remote?and?voice?control,?and?long-lasting,?eco-friendly?performance.?At?the?heart?of?these?innovations?lies?the?32-bit?MCU,?serving?as?the?primary?control?unit.

APM32E103xE?LED?Controller?Solution

To?streamline?development?and?maximize?functionality,?Geehy?presents?a 4-port?LED?controller?solution tailored?specifically?for?smart?LED?strips.?Powered?by Geehy’s?industrial-grade?APM32E103xE?MCUs,?this?solution?manages up?to?1,536?LEDs?per?port,?supporting?the?2D?simulation?of?lighting?effects?via?computer?software.?It?also?enables?online?control?through?USB?or?the?option?to?download?data?to?a?storage?capacity?of?up?to?4GB.?Additional?features?include?audio?output?and?long-distance?signal?transmission?capabilities?of?up?to?1km.

The APM32E103xE MCU,?functioning?as?the?core?control?chip,?manages?USB?communication?and?potentiometer-based?brightness?adjustments,?enabling?two?modes?of?human-computer?interaction. It?interfaces?with?EMMC?storage?via?SDIO,?processes?data?through?DAC,?and?transmits?the?DIN?or?CLK?signals?required?by?the?LED?driver?chip?using?UART?or?SPI.?Long-distance?transmission?and?high?reliability?are?achieved?through?RS-485?chips?and?TVS?diode?protection.

Features?of?the?APM32E103xE?LED?Controller?Solution

• Powered?by?an?ARM??Cortex?-M3?core?operating?at?120MHz.
• Supports?full-speed?USB?2.0?interfaces?for?real-time?computer?access?and?software-controlled?LED?effects.
• Simplifies?peripheral?circuitry,?requiring?only?external?level?conversion?chips.
• Accurately?reads?the?dimming?potentiometer?for?precise?brightness?control.
• Provides?robust?HBM?and?CDM?protection?and?high?anti-interference?capability,?passing?CS?10V?150KHz~230MHz?dynamic?conduction?interference?tests?and?achieving?4KV?EFT?capability.
• Integrates?a?temperature?sensor?to?monitor?ambient?temperature?throughout?the?operating?range.

The APM32E103xE 4-port?LED?controller?solution?also?supports?backup?power?regulation,?ensuring?that?the?system?can?save?and?restore?its?state?upon?power-up.?This?feature,?powered?by?a?button?battery,?maintains?the?power?supply?to?the?RTC?and?backup?registers,?enhancing?system?efficiency?and?flexibility.?For?applications?lacking?backup?power,?Flash?memory?can?emulate?EEPROM,?enabling?the?rapid?saving?of?critical?parameters?during?power?interruptions.