Shared projects

OpenEVSE II logic/display v0.5.1

2 layer board of 3.85 x 1.45 inches (97.8 x 36.8 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.


OpenEVSE II logic/display v0.5.1

2 layer board of 3.85 x 1.45 inches (97.8 x 36.8 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.



J1772 Hydra EVSE board, v4.1

2 layer board of 3.96 x 2.26 inches (100.6 x 57.4 mm).
Shared on March 3rd, 2015 02:43

Charge 2 EVs with one EVSE, standalone variant

For build instructions, see the OpenEVSE wiki.


J1772 Hydra EVSE board, v4.1

2 layer board of 3.96 x 2.26 inches (100.6 x 57.4 mm).
Shared on March 3rd, 2015 02:43

Charge 2 EVs with one EVSE, standalone variant

For build instructions, see the OpenEVSE wiki.



USB Micro ISP v1.4

2 layer board of 1.50 x 0.80 inches (38.1 x 20.3 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


USB Micro ISP v1.4

2 layer board of 1.50 x 0.80 inches (38.1 x 20.3 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



FFC 10 breakout

2 layer board of 0.50 x 1.10 inches (12.7 x 27.9 mm).
Shared on January 24th, 2015 17:30

For OpenEVSE / Hydra debug and dev.

Ironically, this design was created, uploaded and ordered during a power failure.


FFC 10 breakout

2 layer board of 0.50 x 1.10 inches (12.7 x 27.9 mm).
Shared on January 24th, 2015 17:30

For OpenEVSE / Hydra debug and dev.

Ironically, this design was created, uploaded and ordered during a power failure.



Toast-R-Reflow, Controller & LCD backpack (84)

2 layer board of 3.15 x 1.40 inches (80.0 x 35.6 mm).
Shared on January 22nd, 2015 23:06

This is the Toast-R-Reflow controller “backpack.” It mounts on the back of a 80x36mm 2x16 LCD display.

This variant has an ATTiny84 and an AD8495 analog thermocouple amplifier. It’s cheaper than the model II controller, but the flash is full, so there’s no room for more features.


Toast-R-Reflow, Controller & LCD backpack (84)

2 layer board of 3.15 x 1.40 inches (80.0 x 35.6 mm).
Shared on January 22nd, 2015 23:06

This is the Toast-R-Reflow controller “backpack.” It mounts on the back of a 80x36mm 2x16 LCD display.

This variant has an ATTiny84 and an AD8495 analog thermocouple amplifier. It’s cheaper than the model II controller, but the flash is full, so there’s no room for more features.