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SIM900 | GPRS/GSM | 3,3V ; GND | info |
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Ethernet Shield W5100 | - | 5V ; GND | info |
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4 channel 5v relay shield | 4relay | 5V ; GND; 4; 5; 6; 7 | info |
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Sensor Shield | - | 5V ; GND | info |
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Prototype Shield | - | - | info |
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pH | - | - | info |
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ORP | 4relay | 5V ; GND; A1 | info |
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RS485 | GND; 19-RX1; 18-TX1; 5V | info | |
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Siton210 | RS485 | info |