高通与苹果决裂 谁是最后的赢家
作为全球知名的芯片供应厂商，高通的芯片一直以来都被市场认可，尤其是中国的手机厂商更是把能够获得高通的手法芯片为荣。然而高通也有头疼事情，近几年与苹果的关系日益恶化，最终造成目前的决裂。
2018年1月底，欧盟委员会宣布对高通公司罚款9.97亿欧元（约合12.29亿美元），原因为高通滥用其市场主导地位，通过向苹果公司付费的形式来换取苹果在其智能手机和平板电脑中独家使用高通的芯片。在韩国市场，高通则被罚款1.03万亿韩元（约合9.02亿美元）。
截至2018年6月中旬，苹果和高通在全球打了50多场专利官司。这些官司分布于6个不同国家的16个司法管辖区。
高通与苹果决裂 英特尔迎来好机会
同行是冤家，同行的帮手也是冤家。高通不做手机，但是他的芯片确实无数手机厂商最爱的东西，而他的芯片也成为那些安卓手机厂商打击苹果的利器。高通同时还在做手机的基带，这是一款手机信号优劣的关键，此前苹果虽然不适用高通的CPU芯片，但是却使用高通的基带。但是现在苹果却决定彻底和高通决裂，不再使用其提供的基带，转而和因特尔展开合作。
英特尔的CPU制作技术很强，作为全球最大的PC电脑芯片供应商，英特尔的芯片处理器占据这个市场的绝大部分份额。同时这家公司也提供基带产品，但是因为本身的技术实力不太好，此前很少有公司会选择英特尔的产品，但是现在苹果和高通破裂之后，英特尔就成为苹果为数不多的几个可以选择合作的厂商。
彻底弃用高通基带后，苹果将iPhone的“去高通化”作为对高通诉讼的回应，这似乎预示着两家公司的关系已经无法修复，至少在商业上，苹果和高通已然分道扬镳。
2020年的5G苹果确定英特尔为唯一供货商
目前，英特尔已经有能力推出包括支持CDMA2000规格在内的符合苹果性能标准的基带芯片，加上相比高通，英特尔方面还存在更具竞争力的零部件定价优势，所以，英特尔完全有可能挤掉高通，成为苹果iPhone在2018年的唯一基带供应商。消息人士说，iPhone制造商的工程师们一直在与英特尔的同行合作，对即将推出的下一代无线宽带技术5G进行早期研发，同时，与主要的调制解调器供应商高通公司之间的对话则大为减少。
英特尔在调制解调器市场上远远落后于高通，但有一小部分人员正在研发5G，大约有“数千人”。眼下对英特尔来说，为iPhone提供5G调制解调器的业务“势在必得”。
不只是现在的iPhone XS Max手机，未来即将在2020年发布的5G手机，也会采用英特尔的基带产品，未来苹果的5G产品将仍旧选择英特尔基带产品，两家公司未来将会展开深度的合作。
为什么会选英特尔？
苹果在新 iPhone 上全面选用英特尔而不是合作多年的高通，网传有苹果为了节省成本、高通和苹果合作不愉快等解释，但归根到底，主要原因还是高通去年对苹果的指控。
在高通去年 11 月提交的文件里，他们表示苹果此前与高通合作期间，通过高通提供的技术去改进英特尔的调制解调芯片（基带），从而帮助作为高通竞争对手的英特尔解决‘性能欠佳’的问题。
不过从今年苹果押注英特尔并敢于叫板高通的大环境看，我们不难能观察到几个信息：
第一是英特尔开出了一个相对优惠的价格，让苹果大批量装备新手机；其次是英特尔的基带技术已经成熟，并得到了苹果认可，未来或将会继续大批量采购；如果英特尔能担当苹果的长期后盾，高通和苹果的纷争不会在短期内和解。
对于高通的指控，苹果发言人 Ars 在北京时间 9 月 27 日作出回应，称高通作出的指控均无实质证据。所以可以猜想的是，如果高通和苹果的纷争持续到 2019 年甚至更久，那么明年或未来的 iPhone 也将可能会继续采用英特尔供应的基带了。
但是前提也是英特尔能够解决资金的信号差和不稳定的问题，最起码不能再让下一代5G手机出现XS Max的问题。否则到时候苹果很可能就会选择联发科作为自己的供货商，到那时候iPhone手机或许就会更尴尬。
虽然我们不知道苹果与高通的战争将会如何结束，但仅以当前造成的影响来看，不管是高通以专利大旗击败苹果取得胜利，还是苹果以广大的用户基数斗赢高通，最终都只能是伤敌一千自损八百，激烈的碰撞中，永远不会有真正胜利的一方。而在这个故事中，也似乎只有坐收渔翁之利的英特尔能真正笑得出来。
对于高通而言，失去苹果这个大客户可能自己的产品销量会下滑，但是却也不至于影响高通的真正的市场份额，毕竟人家主要客户可是小米等手机厂商。尤其是小米，早早的就宣布自己要和高通共同布局5G市场，这才是高通的真正的大客户啊！
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发表于 06-08 10:19
Nodemcu 0.9对比arduino Nano for Neopixel谁是赢家？
大家好，
为了准备在家里制作真正的运动感应楼梯灯，我制作了一个原型。我正在决定是使用 arduino Nano（或任何其他 arduino）还是 Esp 来驱动 LED。偏好 Esp 8266。
然而，实验证明 Nano 更好，但理论上我知道 Esp 更强大，内存更大。
Nodemcu 0.9 有延迟（请注意视频中 22 秒的延迟）。
是什么导致了这种滞后？
Nano 表现不错，尽管它有更多的像素可能会耗尽内存（对于实际步骤）。
你们觉得怎么样？
代码：全选
// \"Bling\" up your Staircase By Simon Jowett November 2014
// Thanks to the Neopxel Library by Adafruit
#include
#define PIN 3
// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//NEO_KHZ800800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//NEO_KHZ400400 KHz (classic \'v1\' (not v2) FLORA pixels, WS2811 drivers)
//NEO_GRBPixels are wired for GRB bitstream (most NeoPixel products)
//NEO_RGBPixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(24, PIN, NEO_GRB + NEO_KHZ800);
// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel\'s data input
// and minimize distance between Arduino and first pixel.Avoid connecting
// on a live circuit...if you must, connect GND first.
// Set up Variables
unsigned long timeOut=60000; // timestamp to remember when the PIR was triggered.
int downUp = 0;// variable to rememer the direction of travel up or down the stairs
int alarmPinTop = 7;// PIR at the top of the stairs
int alarmValueTop = LOW; // Variable to hold the PIR status
int alarmValueBottom = LOW; // Variable to hold the PIR status
int ledPin = 16;// LED on the arduino board flashes when PIR activated
int LDRSensor = A0;// Light dependant resistor
int LDRValue = 0; // Variable to hold the LDR value
int colourArray[350];// An array to hold RGB values
int change = 1;// used in \'breathing\' the LED\'s
int breathe = 0;// used in \'breathing\' the LED\'s
void setup() {
strip.begin();
strip.show(); // Initialize all pixels to \'off\'
Serial.begin (115200);// only requred for debugging
pinMode(ledPin, OUTPUT);// initilise the onboard pin 13 LED as an indicator
pinMode(alarmPinTop, INPUT);// for PIR at top of stairs initialise the input pin and use the internal restistor
delay (2000); // it takes the sensor 2 seconds to scan the area around it before it can
//detect infrared presence.
for (int i=0 ;i < 350; i++){ // initilise the colourArray to zero
colourArray=0;
}
}
void loop() {
LDRValue = analogRead(LDRSensor);
Serial.println(LDRValue);
if (timeOut+57000 < millis()) {// idle state - \'breathe\' the top and bottom LED to show program is looping
breathe = breathe + change;
strip.setPixelColor(0,0,0,breathe);
strip.setPixelColor(1,0,0,breathe);
strip.setPixelColor(6,0,0,breathe);
strip.setPixelColor(7,0,0,breathe);
strip.setPixelColor(8,0,0,breathe);
strip.setPixelColor(9,0,0,breathe);
strip.setPixelColor(14,0,0,breathe);
strip.setPixelColor(15,0,0,breathe);
strip.setPixelColor(16,0,0,breathe);
strip.setPixelColor(17,0,0,breathe);
strip.setPixelColor(22,0,0,breathe);
strip.setPixelColor(23,0,0,breathe);
strip.show();
if (breathe == 100 || breathe == 0) change = -change;// breathe the LED from 0 = off to 100 = fairly bright
if (breathe == 100 || breathe == 0) delay (300);// Pause at beginning and end of each breath
delay(25);
}
{// only switch on LED\'s at night when LDR senses low light conditions - you may have to change the number for your circumstances!
alarmValueTop = digitalRead(alarmPinTop);// Constantly poll the PIR at the top of the stairs
if (alarmValueTop == HIGH && downUp != 2){// the 2nd term allows timeOut to be contantly reset if one lingers at the top of the stairs before decending but will not allow the bottom PIR to reset timeOut as you decend past it.
timeOut=millis();// Timestamp when the PIR is triggered.The LED cycle wil then start.
downUp = 1;
topdown();// lights up the strip from top down
}
if (alarmValueBottom == HIGH && downUp != 1){ // the 2nd term allows timeOut to be contantly reset if one lingers at the bottom of the stairs before decending but will not allow the top PIR to reset timeOut as you decend past it.
timeOut=millis(); // Timestamp when the PIR is triggered.The LED cycle wil then start.
downUp = 2;
bottomup();// lights up the strip from bottom up
}
if (timeOut+10000 < millis() && timeOut+15000 < millis()) { //switch off LED\'s in the direction of travel.
if (downUp == 1) {
colourWipeDown(strip.Color(0, 0, 0), 50); // Off
}
if (downUp == 2){
colourWipeUp(strip.Color(0, 0, 0), 50);// Off
}
downUp = 0;
//for (int i=0 ;i < 350; i++){ // Depending on your preference you may want to include this loop to clear out the colourArray
// colourArray=0;
// }
}
if (timeOut+15000 < millis() && timeOut+54999 > millis()) waterfall(); // Waterfall effect to play between these times after a PIR trigger.
if (timeOut+55000 < millis() && timeOut+56999 > millis()) fade();// Fade/switch off LED\'s
}
}
void topdown() {
Serial.println (\"detected top\"); // Helpful debug message
colourWipeDown(strip.Color(50, 50, 30), 40); // Warm White
for(int i=0; i<3; i++) {// Helpful debug indication flashes led on Arduino board twice
digitalWrite(ledPin,HIGH);
delay(200);
digitalWrite(ledPin,LOW);
delay(200);
}
}
void bottomup() {
Serial.println (\"detected bottom\"); // Helpful debug message
colourWipeUp(strip.Color(50, 50, 30), 40);// Warm White
for(int i=0; i<3; i++) {// Helpful debug indication flashes led on Arduino board twice
digitalWrite(ledPin,HIGH);
delay(200);
digitalWrite(ledPin,LOW);
delay(200);
}
}
// Fill the dots one after the other with a color
void colourWipeDown(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i-1; i--) {// Shift the RGB colours down in the colourArray[]
colourArray[i+3]=colourArray;
}
colourArray[0] = random(0,20);// Genearate the red component of the 1st LED at the top of the stairs
colourArray[1] = random(0,40);// Genearate the green component of the 1st LED at the top of the stairs
colourArray[2] = random(10,70); // Genearate the blue component of the 1st LED at the top of the stairs
for (int k=0; k<351; k=k+3){ // Set and send the colours to the strip
uint32_t c = strip.Color(colourArray[k],colourArray[k+1],colourArray[k+2]);
strip.setPixelColor(((k+3)/3)-1,c);
}
strip.show();// and display the result
delay(35);// delay to simulate running water
}
// Play the LED fade out
void fade(){
for (int j = 0; j <70; j++) {
for(int i=350; i>-1; i--) {
colourArray=colourArray-1;// reduce intensity of light by 1
if (colourArray <= 0 ) colourArray = 0;
}
for (int k=0; k<351; k=k+3){
uint32_t c = strip.Color(colourArray[k],colourArray[k+1],colourArray[k+2]);
strip.setPixelColor(((k+3)/3)-1,c);
}
strip.show();
delay(60);
}
breathe = 0;
change = 1;
}
代码：全选
// \"Bling\" up your Staircase By Simon Jowett November 2014
// Thanks to the Neopxel Library by Adafruit
#include
#define PIN 4
// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//NEO_KHZ800800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//NEO_KHZ400400 KHz (classic \'v1\' (not v2) FLORA pixels, WS2811 drivers)
//NEO_GRBPixels are wired for GRB bitstream (most NeoPixel products)
//NEO_RGBPixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(24, PIN, NEO_GRB + NEO_KHZ800);
// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel\'s data input
// and minimize distance between Arduino and first pixel.Avoid connecting
// on a live circuit...if you must, connect GND first.
// Set up Variables
unsigned long timeOut=60000; // timestamp to remember when the PIR was triggered.
int downUp = 0;// variable to rememer the direction of travel up or down the stairs
int alarmPinTop = 5;// PIR at the top of the stairs
int alarmValueTop = LOW; // Variable to hold the PIR status
int alarmValueBottom = LOW; // Variable to hold the PIR status
int ledPin = 16;// LED on the arduino board flashes when PIR activated
int LDRSensor = A0;// Light dependant resistor
int LDRValue = 0; // Variable to hold the LDR value
int colourArray[350];// An array to hold RGB values
int change = 1;// used in \'breathing\' the LED\'s
int breathe = 0;// used in \'breathing\' the LED\'s
void setup() {
strip.begin();
strip.show(); // Initialize all pixels to \'off\'
Serial.begin (115200);// only requred for debugging
pinMode(ledPin, OUTPUT);// initilise the onboard pin 13 LED as an indicator
pinMode(alarmPinTop, INPUT);// for PIR at top of stairs initialise the input pin and use the internal restistor
delay (2000); // it takes the sensor 2 seconds to scan the area around it before it can
//detect infrared presence.
for (int i=0 ;i < 350; i++){ // initilise the colourArray to zero
colourArray=0;
}
}
void loop() {
LDRValue = analogRead(LDRSensor);
Serial.println(LDRValue);
if (timeOut+57000 < millis()) {// idle state - \'breathe\' the top and bottom LED to show program is looping
breathe = breathe + change;
strip.setPixelColor(0,0,0,breathe);
strip.setPixelColor(1,0,0,breathe);
strip.setPixelColor(6,0,0,breathe);
strip.setPixelColor(7,0,0,breathe);
strip.setPixelColor(8,0,0,breathe);
strip.setPixelColor(9,0,0,breathe);
strip.setPixelColor(14,0,0,breathe);
strip.setPixelColor(15,0,0,breathe);
strip.setPixelColor(16,0,0,breathe);
strip.setPixelColor(17,0,0,breathe);
strip.setPixelColor(22,0,0,breathe);
strip.setPixelColor(23,0,0,breathe);
strip.show();
if (breathe == 100 || breathe == 0) change = -change;// breathe the LED from 0 = off to 100 = fairly bright
if (breathe == 100 || breathe == 0) delay (300);// Pause at beginning and end of each breath
delay(25);
}
{// only switch on LED\'s at night when LDR senses low light conditions - you may have to change the number for your circumstances!
alarmValueTop = digitalRead(alarmPinTop);// Constantly poll the PIR at the top of the stairs
if (alarmValueTop == HIGH && downUp != 2){// the 2nd term allows timeOut to be contantly reset if one lingers at the top of the stairs before decending but will not allow the bottom PIR to reset timeOut as you decend past it.
timeOut=millis();// Timestamp when the PIR is triggered.The LED cycle wil then start.
downUp = 1;
topdown();// lights up the strip from top down
}
if (alarmValueBottom == HIGH && downUp != 1){ // the 2nd term allows timeOut to be contantly reset if one lingers at the bottom of the stairs before decending but will not allow the top PIR to reset timeOut as you decend past it.
timeOut=millis(); // Timestamp when the PIR is triggered.The LED cycle wil then start.
downUp = 2;
bottomup();// lights up the strip from bottom up
}
if (timeOut+10000 < millis() && timeOut+15000 < millis()) { //switch off LED\'s in the direction of travel.
if (downUp == 1) {
colourWipeDown(strip.Color(0, 0, 0), 50); // Off
}
if (downUp == 2){
colourWipeUp(strip.Color(0, 0, 0), 50);// Off
}
downUp = 0;
//for (int i=0 ;i < 350; i++){ // Depending on your preference you may want to include this loop to clear out the colourArray
// colourArray=0;
// }
}
if (timeOut+15000 < millis() && timeOut+54999 > millis()) waterfall(); // Waterfall effect to play between these times after a PIR trigger.
if (timeOut+55000 < millis() && timeOut+56999 > millis()) fade();// Fade/switch off LED\'s
}
}
void topdown() {
Serial.println (\"detected top\"); // Helpful debug message
colourWipeDown(strip.Color(50, 50, 30), 40); // Warm White
for(int i=0; i<3; i++) {// Helpful debug indication flashes led on Arduino board twice
digitalWrite(ledPin,HIGH);
delay(200);
digitalWrite(ledPin,LOW);
delay(200);
}
}
void bottomup() {
Serial.println (\"detected bottom\"); // Helpful debug message
colourWipeUp(strip.Color(50, 50, 30), 40);// Warm White
for(int i=0; i<3; i++) {// Helpful debug indication flashes led on Arduino board twice
digitalWrite(ledPin,HIGH);
delay(200);
digitalWrite(ledPin,LOW);
delay(200);
}
}
// Fill the dots one after the other with a color
void colourWipeDown(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i-1; i--) {// Shift the RGB colours down in the colourArray[]
colourArray[i+3]=colourArray;
}
colourArray[0] = random(0,20);// Genearate the red component of the 1st LED at the top of the stairs
colourArray[1] = random(0,40);// Genearate the green component of the 1st LED at the top of the stairs
colourArray[2] = random(10,70); // Genearate the blue component of the 1st LED at the top of the stairs
for (int k=0; k<351; k=k+3){ // Set and send the colours to the strip
uint32_t c = strip.Color(colourArray[k],colourArray[k+1],colourArray[k+2]);
strip.setPixelColor(((k+3)/3)-1,c);
}
strip.show();// and display the result
delay(35);// delay to simulate running water
}
// Play the LED fade out
void fade(){
for (int j = 0; j <70; j++) {
for(int i=350; i>-1; i--) {
colourArray=colourArray-1;// reduce intensity of light by 1
if (colourArray <= 0 ) colourArray = 0;
}
for (int k=0; k<351; k=k+3){
uint32_t c = strip.Color(colourArray[k],colourArray[k+1],colourArray[k+2]);
strip.setPixelColor(((k+3)/3)-1,c);
}
strip.show();
delay(60);
}
breathe = 0;
change = 1;
}
发表于 05-23 07:13
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