(1)将各个设备按照图示方式连接,即:pH电极连接到pH meter电路板的BNC接口,然后用模拟连接线,将pH meter电路板连接到Arduino主控器的模拟口0。对Arduino主控器供电后,可以看到pH meter电路板的蓝色指示灯变亮。 (2)对Arduino主控器烧写样例代码。 (3)将pH电极插入到pH值为7.00的标准溶液中,或者直接短接BNC接口的...
pH电极每测一种pH不同的溶液,都需要使用清水清洗,建议使用去离子水清洗。 (1)将各个设备按照图示方式连接,即:pH电极连接到pH meter电路板的BNC接口,然后用模拟连接线,将pH meter电路板连接到Arduino主控器的模拟口0。对Arduino主控器供电后,可以看到pH meter电路板的蓝色指示灯变亮。 (2)对Arduino主控器烧写样例...
#define SensorPin A0 // the pH meter Analog output is connected with the Arduino’s Analog ...
#define ArrayLenth 40 //times of collection int pHArray[ArrayLenth]; //Store the average value of the sensor feedback int pHArrayIndex=0; void setup(void) { pinMode(LED,OUTPUT); Serial.begin(9600); Serial.println("pH meter experiment!"); //Test the serial monitor } void loop(void) ...
int pHArrayIndex=0; void setup(void) { pinMode(LED,OUTPUT); Serial.begin(9600); Serial.println("pH meter experiment!"); //Test the serial monitor } void loop(void) { static unsigned long samplingTime = millis(); static unsigned long printTime = millis(); static float pHValue,vol...
lcd.print(“ Meter ”); delay(2000); } void cap() { microseconds=micros()-microseconds; capacitance=1.443*microseconds/300; capacitance = capacitance/1000; Serial.print(capacitance,3); Serial.println(“uF”); lcd.clear(); lcd.setCursor(0,0); ...
4针JST PH转JST SH电缆-STEMMA到转 / Qwiic 锂离子聚合物电池-3.7V 400mAh USB电缆-USB A转Micro-B 组装 组装项目非常简单,使用微型JST连接器将锂聚合物电池插入和它适配的插座中。 PyBadge和PyGamer在电路板上有一个透明的空间,可以在电池上用一点双粘泡沫胶带固定电池。 由于Feather 开发板具有内置的Li-Po...
这就是为什么市场上可用的溶解氧计（DO Meter）非常昂贵的原因。DfRobot公司的Gravity模拟溶解氧传感器是...
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With the combination of three previous examples, it is possible to develop sophisticated laboratory equipment, for example a Ph Meter with temperature sensor and stirring setup. The commercial cost of this lab equipment is approximately 600 USD, but with this homemade setup, the total cost drops ...