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update description
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vany5921
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## Description
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**Ammeter Unit** is a current meter that can monitor the current in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X48). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S. This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits. Each Unit is individually calibrated when leaving the factory, with an effective accuracy of ±1999 (3 digits after the decimal point) The unit has a maximum measurement current of ±4A, and an internal integrated 4A fuse to prevent excessive measurement current from burning out the circuit. Minimal Resolution reaches 0.15626mA.
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**Ammeter Unit** is a current meter that can monitor the current in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X48). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S. This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits. Each Unit is individually calibrated when leaving the factory, with inital Accurancy 0.1%FS, ±1 count, resolution 0.3mA. The unit has a maximum measurement current of ±4A, and an internal integrated 4A fuse to prevent excessive measurement current from burning out the circuit.
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>? EEPROM (0x51) has built-in calibration parameters when leaving the factory. Please do not write to the EEPROM, otherwise the calibration data will be overwritten and the measurement results will be inaccurate.
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@@ -14,21 +14,21 @@
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- ±4A range
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- 16-bit ADC conversion
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- Inital Accurancy 0.1%FS, ±1 count
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- Resolution 0.3mA
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- LED power indicator
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- Overcurrent protection
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- Minimal Resolution(mA) reaches 0.15626
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- No recalibration (EEPROM factory write)
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- Accuracy up to ±1999
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- Built-in CA-IS3020S isolation chip, anti-interference
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- 4A Slow-blow Fuse
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- Factory calibration (Cal data saved in on-board EEPROM)
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- Built-in I2C isolator CA-IS3020S
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- Isolated DC-DC
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- Up to 5000 VRMS isolation withstand voltage
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- Development platform: Arduino, UIFlow (Blockly, Pyhton)
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- Up to 1000 VRMS isolation withstand voltage
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- Development platform: Arduino, UIFlow (under development)
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- 2x LEGO compatible holes
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## Includes
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- 1x Ammeter Unit
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- 1x Grove Cable
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- 1x Grove Cable(20cm)
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## Application
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</tr>
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<tr>
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<td>Withstand voltage</td>
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<td>5000V</td>
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<td>1000V</td>
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</tr>
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<tr>
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<td>Measuring range</td>
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@@ -6,7 +6,7 @@
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## Description
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**Voltmeter Unit** is a voltage meter that can monitor the voltage in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X49). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S. This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits. Each Unit is individually calibrated when leaving the factory, with an effective accuracy of ±1999 (3 digits after the decimal point), and a maximum measurement voltage of ±36V. Minimal Resolution reaches 0.490798455 mV.
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**Voltmeter Unit** is a voltage meter that can monitor the voltage in real time. The 16-bit ADC (analog-to-digital) converter ADS1115 is used internally to communicate through I2C (0X49). In order to ensure the measurement accuracy, there is a built-in DC-DC isolated power supply, and the I2C interface is also electrically isolated through the low-power isolator CA-IS3020S. This prevents noise and surges on the data bus or other circuits from entering the local ground terminal to interfere or damage sensitive circuits. Each Unit is individually calibrated when leaving the factory, inital Accurancy 0.1%FS, ±1 count, and a maximum measurement voltage of ±36V.
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>? EEPROM (0x53) has built-in calibration parameters when leaving the factory. Please do not write to the EEPROM, otherwise the calibration data will be overwritten and the measurement results will be inaccurate.
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@@ -15,19 +15,18 @@
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- ±36V range
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- LED power indicator
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- 16-bit ADC conversion
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- Overcurrent protection
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- No recalibration (EEPROM factory write)
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- Accuracy up to ±1999
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- Minimal Resolution(mV) reaches 0.490798455
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- Resolution: Auto range, Count ≤ 16V, 1mV; Count > 16V, 7.9mV
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- Inital Accurancy 0.1%FS, ±1 count
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- Built-in CA-IS3020S isolation chip, anti-interference
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- Isolated DC-DC
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- Up to 5000 VRMS isolation withstand voltage
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- Development platform: Arduino, UIFlow (Blockly, Python)
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- 2x LEGO™ compatible holes
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- Up to 1000 VRMS isolation withstand voltage
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- Development platform: Arduino, UIFlow (under development)
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- 2x LEGO compatible holes
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## Includes
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- 1x Voltmeter Unit
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- 1x Grove Cable
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- 1x Grove Cable(20cm)
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## Application
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<td>Parameter</td>
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</tr>
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<tr>
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<td>Withstand voltage</td>
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<td>5000V</td>
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<td>Resolution</td>
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<td>Auto range, Count ≤ 16V, 1mV; Count > 16V, 7.9mV</td>
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</tr>
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<tr>
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<td>Measuring range</td>
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<td>±36V</td>
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</tr>
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<tr>
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<td>Inital Accurancy </td>
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<td>0.1%FS, ±1 count</td>
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</tr>
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<tr>
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<td>Protocol</td>
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<td>I2C</td>
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@@ -6,7 +6,7 @@
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## 描述
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**Ammeter Unit** 是一款电流计，可以对电流进行实时监测。内部采用16位ADC数模转换器ADS1115，通过I2C(0X48)进行通讯。为了保证测量精度，内置DC-DC隔离电源，同时I2C接口通过低功耗隔离器CA-IS3020S进行电气隔离，防止数据总线或其他电路上的噪声和浪涌进入本地接地端而干扰或损坏敏感电路。每个Unit在出厂时都单独进行校准，最小分辨率达到0.15626mA，有效值达到±1999（小数点后三位），最大测量电流为±4A，内部集成4A熔断器，防止测量电流过大烧毁电路。
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**Ammeter Unit** 是一款电流计，可以对电流进行实时监测。内部采用16位ADC数模转换器ADS1115，通过I2C(0X48)进行通讯。为了保证测量精度，内置DC-DC隔离电源，同时I2C接口通过低功耗隔离器CA-IS3020S进行电气隔离，防止数据总线或其他电路上的噪声和浪涌进入本地接地端而干扰或损坏敏感电路。每个Unit在出厂时都单独进行校准，精度为满量程%1，±1位读数，分辨率为0.3mA，最大测量电流为±4A，内部集成4A熔断器，防止测量电流过大烧毁电路。
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>? EEPROM(0x51)在出厂时内置了校准参数，请勿对EEPROM进行写操作，否则校准数据将被覆盖导致测量结果不准确。
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@@ -14,21 +14,22 @@
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- ±4A量程
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- 16位ADC转换
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- 最小分辨率达到0.15626mA
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- 4A熔断器
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- 精度为满量程%1，±1位读数
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- 分辨率0.3mA
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- LED电源指示灯
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- 过流保护
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- 免重新校准(EEPROM出厂写入)
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- 精度高达±1999
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- 内置 CA-IS3020S隔离芯片，抗干扰
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- 隔离DC-DC
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- 高达 5000 VRMS 隔离耐压
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- 高达 1000 VRMS 隔离耐压
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- 开发平台: Arduino, UIFlow(Blockly,Pyhton)
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- 2x LEGO 兼容孔
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## 包含
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- 1x Ammeter Unit
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- 1x Grove 线
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- 1x Grove 线(20cm)
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## 应用
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@@ -43,7 +44,7 @@
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</tr>
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<tr>
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<td>耐压值</td>
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<td>5000V</td>
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<td>1000V</td>
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</tr>
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<tr>
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<td>测量范围</td>
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@@ -6,7 +6,7 @@
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## 描述
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**Voltmeter Unit** 是一款电压传感器，可以对电压进行实时监测。内部采用16位ADC数模转换器ADS1115，通过I2C(0X49)进行通讯。为了保证测量精度，内置DC-DC隔离电源，同时I2C接口通过低功耗隔离器CA-IS3020S进行电气隔离，防止数据总线或其他电路上的噪声和浪涌进入本地接地端而干扰或损坏敏感电路。每个Unit在出厂时都单独进行校准，有效值达到±1999（小数点后3位），最大测量电压为±36V，最小分辨率达到0.490798455mV。
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**Voltmeter Unit** 是一款电压传感器，可以对电压进行实时监测。内部采用16位ADC数模转换器ADS1115，通过I2C(0X49)进行通讯。为了保证测量精度，内置DC-DC隔离电源，同时I2C接口通过低功耗隔离器CA-IS3020S进行电气隔离，防止数据总线或其他电路上的噪声和浪涌进入本地接地端而干扰或损坏敏感电路。每个Unit在出厂时都单独进行校准，最大测量电压为±36V，精度为满量程的1%，±1位读数。
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>? EEPROM(0x53)在出厂时内置了校准参数，请勿对EEPROM进行写操作，否则校准数据将被覆盖导致测量结果不准确。
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@@ -14,21 +14,21 @@
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- ±36V量程
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- 16位ADC转换
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- 最小分辨率达到0.490798455mV
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- 分辨率：16V以下(含16V)为1mV，16V以上为7.9mV
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- 精度为满量程的1%，±1位读数
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- LED电源指示灯
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- 过流保护
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- 免重新校准(EEPROM出厂写入)
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- 精度高达±1999
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- 内置 CA-IS3020S隔离芯片，抗干扰
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- 隔离DC-DC
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- 高达 5000 VRMS 隔离耐压
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- 高达 1000 VRMS 隔离耐压
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- 开发平台: Arduino, UIFlow(Blockly,Python)
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- 2x LEGO 兼容孔
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## 包含
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- 1x Voltmeter Unit
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- 1x Grove 线
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- 1x Grove 线(20cm)
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## 应用
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- 电压表
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@@ -41,8 +41,8 @@
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<td>参数</td>
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</tr>
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<tr>
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<td>耐压值</td>
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<td>5000V</td>
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<td>分辨率</td>
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<td>读数<=16V为1mV，读数>16V为7.9mV</td>
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</tr>
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<tr>
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<td>测量范围</td>
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@@ -146,7 +146,7 @@ bool Voltmeter::saveCalibration2EEPROM(voltmeterGain_t gain, int16_t hope, int16
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<table>
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<tr><td>M5Core(GROVE A)</td><td>SDA(GPIO21)</td><td>SCL(GPIO22)</td><td>5V</td><td>GND</td></tr>
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<tr><td>A Meter Unit</td><td>SDA</td><td>SCL</td><td>5V</td><td>GND</td></tr>
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<tr><td>V Meter Unit</td><td>SDA</td><td>SCL</td><td>5V</td><td>GND</td></tr>
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</table>
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## 案例程序
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