Landis+Gyr Residential Meter

Early Generation Dual Board based on M16C processor

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  Dual board meter, older design, brain/network board top

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  Dual board meter, older design, brain/network board bottom

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  Dual board meter, older design, metering board top

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  Dual board meter, older design, metering board bottom

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Generation 4 based on M16C processor

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  Blank PCB Components side

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  Blank PCB Screen and Buttons side

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  Component side ground plane and traces sanded off

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  Component side ground plane and screen side sanded off

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  Screen side ground plane

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  Screen side ground plane sanded off showing internal layer traces

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  PCB with EM250 Zigbee chip and lower accuracy Teridian chip

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  PCB with EM357 Zigbee chip and higher accuracy Teridian chip

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Generation 5 smart meter based on ARM Cortex-M processor

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  Top of Gen5 meter board with LCD screen

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  Top of Gen5 meter board with the LCD screen removed

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  Bottom of Gen5 meter board, ATSAM4C32 processor is under the large brown capacitor seen in the bottom middle of the PCB.

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  Red circled spots are missing 0 ohm resistors you need to solder bridge to enable JTAG connector to function.