Hello! Everyone! I am Nuvoton FAE Tim. Today, I will show you ML56 Capacitive Touch Key PCB Design. First introduce the Touch Sensor Channel Selection. Touch Sensor Channels. ML56 series supports up to 14 touch sensor channels. #Reference Sensor It is recommended to select one reference sensor at touch sensor channel TK7 or TK14. Maximize the distance between the reference sensor and other signals to minimize crosstalk. #Shield Electrodes Put the shield electrode around the touch sensor to get better signal quality and waterproof capability. Recommended to select shield channel at touch TK0, TK4 or clock out pins (P3.2 / P4.6 / P5.7). Next, we will explain the PCB Layout Rules. #Touch Key Shapes Recommended to have a 10 x 10 mm sensor area for good touch key sensitivity. Larger touch sensor electrode work better for thicker cover. #Reference Sensor Recommended to assign the reference key at touch channel TK7 or TK14. Maximize the distance to other signals to minimize crosstalk. Round shape electrode with 1 mm diameter size is enough for normal case. #Ground Plane It is recommended that the traces of the touch key have a good hatched ground plane surround. It is recommended to have hatched ground plane under the touch keys. Hatched ground plane with 6 mil trace and 50 mil grid. #Shield Electrode Put touch keys with shield electrode around which provides the same phase signal around touch keys. Hatched shield electrode with 6 mil trace and 50 mil grid. Shield electrode area needs to keep filled around the touch key in greater than 10 mm width. Finally, explain the Touch Key Cover Thickness. As the cover thickness increases, the touch key sensitivities will decrease. Larger touch key size work better for thicker cover. Recommended touch key diameter size with difference acrylic cover thickness as shown in the table. That's all for today's video, thank you everyone! If you have any questions, please contact us. - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/low-power-8051-series/ Contact us: SalesSupport@nuvoton.comon.com #Product #Learning #Basic #en

介紹與說明 Nuvoton NuMicro ML56 電容式觸控按鍵電路板設計。 哈囉大家好！我是新唐 FAE Tim。 今天為大家介紹 ML56 電容式觸控按鍵電路板設計。 首先介紹觸控傳感器通道選擇。 #觸控傳感器通道 ML56 系列最多支援 14 個觸控傳感器通道。 #參考傳感器 建議選擇觸控傳感器通道 TK7 或 TK14 當作參考傳感器。 加大參考傳感器和其他信號之間的距離，以降低互相干擾的機會。 #屏蔽電極 將屏蔽電極圍繞在觸控傳感器周圍，可以有更好的信號品質和防水能力。 建議選擇觸控傳感器通道 TK0, TK4 或時脈輸出腳位 (P3.2/ P4.6/ P5.7) 當作屏蔽通道。 接著要說明 PCB 佈局規則。 #觸控按鍵形狀 建議傳感器面積為 10 x 10 mm，以實現良好的觸控按鍵靈敏度。 觸控傳感器的電極越大，外殼厚度可以越厚。 #參考傳感器 建議選擇觸控傳感器通道 TK7 或 TK14 當作參考傳感器。 加大參考傳感器和其他信號之間的距離，以降低互相干擾的機會。 一般情況下，建議使用直徑為 1 mm 大小的圓形電極。 #接地 建議觸控按鍵的走線具有良好的網地圍繞。 建議觸控按鍵下方要鋪網地。 鋪網地的規格為 6 mil 的走線和 50 mil 的網格。 #屏蔽電極 將屏蔽電極圍繞在觸控按鍵周圍，用於在觸控按鍵周圍提供同相位的信號。 網狀屏蔽電極的規格為 6 mil 的走線和 50 mil 的網格。 屏蔽電極區域到觸控按鍵周圍的寬度需要大於 10 mm。 #觸控按鍵外殼厚度 隨著外殼厚度的增加，觸控按鍵的靈敏度將降低。 觸控按鍵尺寸越大，外殼能做得越厚。 建議的觸控按鍵直徑尺寸與搭配的壓克力外殼厚度如表所示。 以上是這次的教學影片，謝謝大家！ 如果您有任何問題，歡迎聯絡我們。 - 更多產品資訊，請至新唐科技網站 https://bit.ly/3hVdcmC 購買管道：https://direct.nuvoton.com/tw/low-power-8051-series/ 聯絡我們： SalesSupport@nuvoton.com #Product #Learning #Basic #zh-Hant

Take Nuvoton NuMaker-IIoT-NUC980 running Linux as the platform and learn how to develop various functions. Watch this video and you will learn how to install Buildroot for NuMaker-IIoT-NUC980 board before starting development. - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/numaker-nuc980-iiot Contact us: SalesSupport@nuvoton.com #Training #Learning #Basic #en

介紹與說明 Nuvoton NuMicro ML56 電容式觸控按鍵基本原理和感應方法。 哈囉大家好! 我是新唐 FAE Tim，今天為大家介紹 ML56 電容式觸控按鍵技術。 首先介紹 #電容式觸控按鍵基本原理。 在沒有手指觸摸的傳感器的電容稱為 “寄生電容” CP 。 寄生電容是由傳感器 (包括傳感器，走線和過孔) 與系統中其他導體 (例如接地層，走線，產品機構或外殼中的任何金屬等) 之間的電場所產生的。 傳感器和手指之間的電容為 CF，傳感器的總電容 CT 是 CP 和 CF 之和。 接著要說明 ML56 #電容式觸控按鍵感應方法。 ML56 實現了兩個可變電容器組，用於向 CP (或 CT) 和 CR 注入電荷。 CR 是參考通道的寄生電容，在觸控按鍵校正之後，CP 和 CR 與 CB 和 CCB 保持平衡 (比較器輸出為 “低準位”) 。 手指觸摸在目前偵測的觸控按鍵，導致 CT = CP + CF，使比較器的負輸入端電壓低於正輸入端，並且比較器輸出為 “高準位”。 ML56 觸控按鍵控制器會將 CCB 增加到 CCB’，以使 CT 和 CR 再次達到平衡 (比較器輸出為 “低準位”)。透過檢查 CCB 和 CCB’ 之間的差異，可以做手指觸摸的偵測。 CCB 增加到 CCB’ 的數值與預定的觸控門檻值來做比較，演算法可以確定觸控按鍵處於 ON (觸摸) 狀態還是 OFF (無觸摸) 狀態。 以上是這次的教學影片, 謝謝大家！ 如果您有任何問題，歡迎聯絡我們。 - 更多產品資訊，請至新唐科技網站 https://bit.ly/3hVdcmC 購買管道：https://direct.nuvoton.com/tw/low-power-8051-series/ 聯絡我們： SalesSupport@nuvoton.com #Product #Learning #Basic #zh-Hant

For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/numaker-m251sd Contact us: SalesSupport@nuvoton.com #Product #Learning #Basic #en 0:00 簡介 0:29 Nuvoton Low Power Microcontroller Family 1:24 NuMicro M251 Series Overview 3:31 M251 & M252 Low Power Series 4:08 M251 Series Remarkable Features 7:14 M251/M252 Power Mode 9:37 I NuMicro MCU Applications 12:09 Development Tools

Hello everyone, I am Chris, the field application engineer from Nuvoton Technology. Today I will introduce the power modes of the M251/M252 series microcontroller. The M251/M252 series has multiple power modes. The differentiation is based on power consumption, wake-up time, the operable CPU, and peripherals. In normal mode, the CPU is running normally. In Idle mode, only the CPU clock is disabled while other peripherals work as usual. Normal mode and idle mode can be divided into high-efficiency high-speed PL0 mode and low-power low-speed PL3 mode according to CPU operating speed. We should note that in the low-speed PL3 mode, only the clock source of the CPU and peripherals is 32.768 or 38.4 kHz can run. In power-down mode, there are three types according to power consumption. The first is NPD (Normal Power Down Mode). The CPU and high-speed peripherals stop running, and only the low-speed peripherals can work normally. The second is FWPD (Fast Wake Up Power Down Mode), which is the fastest wake-up of the three power-down modes but consumes more power. The third is DPD (Deep Power Down Mode), which consumes the lowest power among the three power-down modes, but the data in the RAM cannot be retained, and the wake-up speed is the slowest. Specific peripherals or pins can only activate the wake-up. For power consumption and wake-up time, we list the corresponding data. Users can choose the most suitable power mode according to the required power consumption and wake-up time. We need to note that FWPD mode will consume more power in the power-down mode because this mode wakes up the fastest. The DPD mode is the least power consumption, but the longest wake-up time.， Also, normal mode is a normal working mode, so there is no need to wake up. The time unit of the idle mode is different from the power-down mode, which is five cycles. The length of a cycle is determined according to the operating frequency used by the system. In the related resources section, we provide application notes for power management, which have more detailed operations and descriptions. If you want to know more, please download it from the URL in the video. There are also various power mode entry and wake-up methods in the BSP package; you can also refer to and use it. That’s all for the power modes introduction. Thank you for watching it. Please subscribe to our channel for more video resources. If you want to know more information, please contact us. #Tool #Training #Learning #Intermediate #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/numaker-m251sd Contact us: SalesSupport@nuvoton.com

Hello everyone, I am Chris, the field application engineer from Nuvoton Technology. Today, I will introduce the application and principle of programmable seriel I/O aka PSIO on M251/M252. The programmable serial I/O of NuMicro M251/M252 series can generate arbitrary waveforms and combine them to achieve data transmission and reception of specific serial communication protocols. Of course, standard serial communication can also be achieved, such as UART SPI I2C Usually, it is common to use Timer+GPIO to achieve these specific communication protocols, but it is more complicated and requires frequent CPU intervention. When we use PSIO, this not only simplifies the complexity of the operation but also reduces the burden on the CPU. The saved CPU performance could be distributed in other places. Since all hardware operations do not require software intervention, the timing control is more precise. The principle of PSIO is to use a slot controller to control the pin input and output or determine the state, and it can also control the duration of these states. Each slot controller has eight slots, which can be used as eight settings, and the registers corresponding to each slot can access the data that needs to be input and output, and can also set the time for the current pin to maintain this state. Each slot can reach a checkpoint, usually 1 to 1, 2 to 2, 3 to 3, and so on. Each checkpoint can set the pin status of the corresponding slot within the corresponding time. Next, let’s take a look at a simple output-only example In the initial stage, we first set the state of the pin to be high before SLOT has started, so the output is high Then when the Slot controller receives the start signal, SLOT0 is set to output low level according to the setting of CP0 and waits for the time of SLOT0 to expire. Then SLOT1 is set to output low level according to the setting of CP1 and waits for the time of SLOT1 to expire. And so on, followed by SLOT2 output low level SLOT3 low level SLOT4 high level SLOT5 high level After SLOT5, since SLOT6 is not set, the waveform of the protocol can be completed with only six slots Between the time of the next data transmission, we set the interval low, so the output is low at this time Users can complete different protocols according to these simple operations. In the related resources section, we have provided two PSIO application notes. There are two protocol examples with more detailed operations and descriptions. If you want to know more details about PSIO, please download it from the URL in the video. Several sample codes of different protocols are also provided in BSP. That’s all for this tutorial. Thank you for watching it. Welcome to subscribe to our channel. If you want to know more information, please contact us. #Tool #Training #Learning #Intermediate #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/numaker-m251sd Contact us: SalesSupport@nuvoton.com

Hello, everyone! I'm Chris, Field Application Engineer from Nuvoton Technology. Today, I will introduce you how to design NuMicro M251/ M252 application circuit. Let's start with the power application circuit of M251/M252. The external power should add 10uF and 0.1uF decoupling capacitors, and the capacitor should be placed close to the source of the external power supply. Before the external power enters the VDD/VDDIO/VBAT of the IC, 0.1uF bypass capacitors should be added separately, and the capacitors should be placed close to the IC. Before the external power enters the AVDD, the bead should be connected in series for filtering, and then 1uF, 0.1uF, and 0.01uF bypass capacitors should be added. The bead and capacitors should be placed close to the IC. Before connecting AVDD to VREF, first, connect the bead in series for filtering, and then add 2.2uF, 1uF, and 470pF bypass capacitors. The bead and capacitors should be placed close to the IC. A 1uF bypass capacitor should be added to the internal LDO power supply of the IC, and the capacitor should be placed close to the IC. AVSS and VSS should be connected in series with a bead for filtering. USB_VBUS should be connected in series with a 10-ohm resistor to enhance the ability of USB to resist EFT interference. USB_D+ and USB_D- should be connected in series with 27-ohm resistors for impedance matching. USB_VCC33_CAP needs to add a 1uF bypass capacitor. ICE_DAT and ICE_CLK should be connected to 100K ohm pull-up resistors. The two ends of the high-speed and low-speed crystal oscillators should be connected with an equivalent capacitance of 20pF to VSS. I2C_SCL and I2C_SDA should be connected to 4.7K ohm pull-up resistors. nRESET should be connected to a 10K ohm pull-up resistor and a 10 uF capacitor to VSS. The internal LDO power supply of the IC needs to add a 1 uF bypass capacitor, and the capacitor should be placed close to the IC. In addition, reference circuits for EBI, UART, SPI, and Audio are provided. VDD is connected to 4~32 MHz crystal oscillator, POR33, Power On Control, 5V to 1.5V LDO, IO Cell... and other circuits inside the IC. Among them, GPIO PF.4 to PF.6 and PA.0 to PA.5 output, the high level is equal to VDD. Vbus is connected to the USB 1.1 PHY inside the IC. This 1.5V regulator will provide 1.5V for Digital Logic, SRAM, Flash, POR15, LIRC, MIRC, HIRC... and so on. Vbat is connected to internal 1.5V RTC_LDO and provides 1.5V voltage for RTC, 32.768 kHz crystal oscillator, IO Cell PF.6. VDDIO is connected to some IO cell for use, and the output high level of PA.0 to PA.5 is equal to VDDIO. AVDD is connected to the analog circuit inside the IC, and VREF is the reference voltage of the analog circuit. That's all for the hardware design of the NuMicro M251/M252 series instruction. Thank you for watching it. If you have further questions, please contact us. #Tool #Training #Learning #Intermediate #en - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/numaker-m251sd Contact us: SalesSupport@nuvoton.com

Loudspeakers are highly nonlinear and time-variant systems. Signal distortion, heating, aging, climate and other external influences limit the maximum level and the quality of the reproduced sound. This video shows how Nuvoton smart amplifier can greatly improve the speaker performance and the sound quality by offering mechanical & thermal protection, automatic system alignment, active compensation of transducer nonlinearities, and active stabilization of the voice coil rest position based on the Klippel Controlled Sound (KCS) technology.

新唐科技推出最新集成控制、電容式觸控、驅動液晶顯示器 (LCD) 的三合一低功耗微控制器 - Nuvoton NuMicro ML51/ML54/ML56 系列，採用 1T 8051 嵌入式核心，最高速可達 24 MHz，在正常運行模式典型功耗可達 80 uA/MHz，休眠模式功耗可低於 1 uA，當休眠模式 LCD 開啟之功耗可低至 20 uA。ML51/ML54/ML56 系列提供配置 16/32/64 KB Flash 與1/2/4 KB SRAM，提供 10 腳至 64 腳多樣的封裝，內建高達 14 個的觸控按鍵硬體支援自動掃描與校準功能，節省外部元件並縮小產品體積，在休眠模式下平均功耗不到 2 uA 即可實現 14 個觸控按鍵的偵測。 - 更多產品資訊，請至新唐科技網站 https://bit.ly/3hVdcmC 購買管道：https://direct.nuvoton.com/tw/low-power-8051-series/ 聯絡我們： SalesSupport@nuvoton.com #Product #Learning #Basic #zh-Hant

Nuvoton announced the latest ML51/ML54/ML56 microcontroller, built-in capacitive touch sensing, LCD driver highly integrated low power platform. Based on 1T 8051 core, running up to 24MHz, the power consumption in normal run mode is 80uA/MHz, lower than 1uA in power down mode the power consumption while power down with LCD on is lower than 20uA. 0:00 intro 0:37 NuMicro 8051 Microcontroller 1:38 ML51/ML54/ML56 Product Portfolio 2:18 ML51/ML54/ML56 Features 3:27 Broad Scalability 4:05 Provide 4 Different Power Modes 4:44 LCD Driver Feature 5:52 Touch Key Features 7:05 Target Applications #Product #Learning #Basic #en #ML51 #ML54 #ML56 #8051 #LowPower #LCD-Driver #HumanMachineInterface #HMI #TouchKey-IC #HomeAppliance #EmbeddedWorld2022 - For more information, please visit Nuvoton Technology Website: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/low-power-8051-series/ Contact us: SalesSupport@nuvoton.com

The purpose of video is to demonstrate functions of NuMaker-RTU-NUC980 within 5 minutes, including Ethernet webserver, Wi-Fi webserver, USB camera, and NFS function. If you get the NuMaker-RTU-NUC980 board, you can follow this video to implement all the functions #application #learning #intermediate #en - For more information, please visit: https://bit.ly/3hVdcmC Buy now: https://direct.nuvoton.com/tw/numaker-rtu-nuc980?search_query=Chili&results=1 Contact us: SalesSupport@nuvoton.com