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You could make a tweet a watt (option2). Alternatively, you could use a clamp on current sensor - as discussed on the Raspberry Pi forums (option 3)

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• you could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.

You could make a tweet a watt (option2). Alternatively, you could use a clamp on current sensor - as discussed on the Raspberry Pi forums (option 3)

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• depending on how loud the ambient noise level is you could use a microphone,
• you could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.

You could make a tweet a watt (option2).

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• you could use a clamp on current sensor - as discussed on the Raspberry Pi forums (option 3)
• you could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.

You could make a tweet a watt (option2). Alternatively, you could use a clamp on current sensor - as discussed on the Raspberry Pi forums (option 3)

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• you could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.

You could make a tweet a watt.

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• you could use a clamp on current sensor - as discussed on the Raspberry Pi forums
• You could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.

You could make a tweet a watt (option2).

There are a couple of alternatives that you may not have thought about:

• If the washer has an LED you can monitor that,
• you could use a clamp on current sensor - as discussed on the Raspberry Pi forums (option 3)
• you could attach a piezo disk/vibration sensor, or
• simplest of all set the Pi up as a timer that you set when starting the washer.