Shared projects

Protoboard with groundplanes

by nsayer.

2 layer board of 7.00x4.00 inches (177.80x101.60 mm).
Shared on April 1st, 2015 05:49.

This is inspired by the AdaFruit “perma-proto” board. But what that board lacks is a good groundplane to help prevent EMI and insure good noise immunity. It also provides a good level of surge-suppression capability for good measure. This version is also large enough for your more complex projects.

P.s.: This was an April Fools' joke.

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J1772 Hydra HV board, v4.2.1

by nsayer.

2 layer board of 3.95x2.25 inches (100.33x57.15 mm).
Shared on March 12th, 2015 17:48.

Charge 2 EVs with one EVSE, HV/Power board

For build instructions, see the OpenEVSE wiki.

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OpenEVSE II logic/display v0.5.1

by nsayer.

2 layer board of 3.85x1.45 inches (97.82x36.83 mm).
Shared on March 8th, 2015 09:06.

A new design for OpenEVSE. This is the logic/display board.

For build instructions, see the OpenEVSE wiki.

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J1772 Hydra EVSE board, v4.1

by nsayer.

2 layer board of 3.96x2.26 inches (100.56x57.38 mm).
Shared on March 3rd, 2015 02:43.

Charge 2 EVs with one EVSE, standalone variant

For build instructions, see the OpenEVSE wiki.

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USB Micro ISP v1.4

by nsayer.

2 layer board of 1.50x0.80 inches (38.13x20.32 mm).
Shared on February 25th, 2015 21:22.

A voltage-agile SMD AVR programmer. QFN/SSOP variant.

This version adds a recovery clock pin. With a slight mod to the firmware, the recovery clock pin will have a 500 kHz square wave during programming.

BOM:

  • R1 10K
  • R2 & R3 150R
  • R4, R5 & R6 1.5K
  • C2 & C5 0.1µF
  • C3 & C4 22pF
  • C6 1µF
  • C7 2.2µF
  • D1 & D2 1N4148
  • Y1 12 MHz
  • IC1 ATTiny2313
  • IC2 74HC365
  • IC3 3.3 volt LDO
  • IC4 AP2331
  • PROG Red 0805 LED
  • CONN Green 0805 LED
  • JP4 Micro USB-B
  • F1 500 mA PTC

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