{"id":3955,"date":"2011-05-08T18:48:51","date_gmt":"2011-05-08T23:48:51","guid":{"rendered":"http:\/\/mightyohm.com\/blog\/?p=3955"},"modified":"2022-12-28T13:28:42","modified_gmt":"2022-12-28T21:28:42","slug":"test-jig-for-the-hv-rescue-shield","status":"publish","type":"post","link":"https:\/\/mightyohm.com\/blog\/2011\/05\/test-jig-for-the-hv-rescue-shield\/","title":{"rendered":"Test Jig for the HV Rescue Shield"},"content":{"rendered":"

\"HV<\/p>\n

This weekend I threw together a simple test jig for the HV Rescue Shield<\/a>.<\/p>\n

The completed jig is shown above. \u00a0There are four header pins, one at each corner, that are used to align the \u00a0BUT, or board under test. \u00a0The Kapton tape insulates the two bottom standoffs from shorting against the bottom of the BUT.<\/p>\n

Pogo pins are used to make electrical connection to the BUT. \u00a0I connect to +5V, ground, 12V_EN, and 12V_SW (the +12V output).<\/p>\n

These pogo pins are similar to the ones Ladyada uses in her test jig tutorial<\/a>. \u00a0You can get these in a wide variety of styles on eBay<\/a>.\u00a0I think the ones I used are P75-K “chisel” type tips. \u00a0They just happen to fit into the existing holes in the PCB with no modification.<\/p>\n

The height can be adjusted by melting the solder around the pogo pin and pushing it up and down. \u00a0I lost a couple pins when I pushed them down too far and let solder get into the spring mechanism. \u00a0Oops.<\/p>\n

\"HV<\/p>\n

The standoffs are made of reclaimed screws that I had lying around. \u00a0Right now I am connecting to the pogo pins with clip leads, but I might make a more permanent test setup someday<\/em>.<\/p>\n

\"HV<\/p>\n

To test a board, I align it with the header pins and push down. \u00a0Easy.<\/p>\n

Previously I was using something similar, but without alignment pins or standoffs, so it was challenging to align and push down the board-under-test with the pogo pins without the whole setup sliding around the bench. \u00a0The new jig works well and makes testing a large batch of boards a breeze.<\/p>\n

\"BUT\"<\/p>\n

Here’s my current testing setup.<\/p>\n

\"Testing<\/p>\n

The output of the 5 to 12V DC-DC converter is shown on the top display (that’s my beloved Fluke 45 bench meter) while the power supply current is shown on the bottom. \u00a0The toggle switch on the bench just to the right of the jig is so I can toggle the 12V_EN line and make sure the DC-DC converter turns off too.<\/p>\n

This board looks good, and so did 29 of his friends. \u00a00% failure rate on this build! \u00a0I seem to have my process pretty much figured out now.<\/p>\n

\"Tested<\/p>\n","protected":false},"excerpt":{"rendered":"

This weekend I threw together a simple test jig for the HV Rescue Shield. The completed jig is shown above. \u00a0There are four header pins, one at each corner, that are used to align the \u00a0BUT, or board under test. \u00a0The Kapton tape insulates the two bottom standoffs from shorting against the bottom of the … Continue reading Test Jig for the HV Rescue Shield<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5],"tags":[364,284],"class_list":["post-3955","post","type-post","status-publish","format-standard","hentry","category-electronics","tag-hvrescue","tag-lab"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pioCd-11N","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":4757,"url":"https:\/\/mightyohm.com\/blog\/2012\/02\/alternative-software-for-the-hv-rescue-shield\/","url_meta":{"origin":3955,"position":0},"title":"Alternative software for the HV Rescue Shield","author":"Jeff","date":"February 13, 2012","format":false,"excerpt":"Dennis writes... I thought I'd share with other users of the HV Rescue shield an enhanced Arduino script I have written, based on Jeff's original software v212. ... The new software retains the look and feel of the original, it can still be run in interactive and non interactive mode\u2026","rel":"","context":"In "Kits"","block_context":{"text":"Kits","link":"https:\/\/mightyohm.com\/blog\/category\/kits\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":294,"url":"https:\/\/mightyohm.com\/blog\/2008\/09\/arduino-based-avr-high-voltage-programmer\/","url_meta":{"origin":3955,"position":1},"title":"Arduino-based AVR High Voltage Programmer","author":"Jeff","date":"September 24, 2008","format":false,"excerpt":"Update 01\/02\/09: A PCB version of this circuit is in the design stages - some preliminary information is here. Update 03\/11\/09: Kits based on this design are now for sale! Update 12\/14\/10: The original AVR HV Rescue Shield kit has been replaced by the new and improved HV Rescue Shield\u2026","rel":"","context":"In "Kits"","block_context":{"text":"Kits","link":"https:\/\/mightyohm.com\/blog\/category\/kits\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2008\/09\/hvfuse_fixed.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2008\/09\/hvfuse_fixed.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2008\/09\/hvfuse_fixed.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2008\/09\/hvfuse_fixed.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2008\/09\/hvfuse_fixed.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":1399,"url":"https:\/\/mightyohm.com\/blog\/2009\/03\/avr-hv-rescue-shield-pcbs-are-in-kits-available-soon\/","url_meta":{"origin":3955,"position":2},"title":"AVR HV Rescue Shield PCBs are in, kits available soon.","author":"Jeff","date":"March 3, 2009","format":false,"excerpt":"Big news - the AVR HV Rescue Shield PCBs arrived yesterday!\u00a0 I'm currently testing them and will post information about kits for sale as soon as I verify that everything is working properly. This is actually the second spin of the PCB but the first to bear the 'Rescue Shield'\u2026","rel":"","context":"In "Microcontrollers"","block_context":{"text":"Microcontrollers","link":"https:\/\/mightyohm.com\/blog\/category\/microcontrollers\/"},"img":{"alt_text":"AVR HV Rescue Shield PCB - Top","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2009\/03\/jsk_021809_top-419x500.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3027,"url":"https:\/\/mightyohm.com\/blog\/2010\/08\/avr-hv-rescue-shield-code-update-1-2\/","url_meta":{"origin":3955,"position":3},"title":"AVR HV Rescue Shield Code Update 1.2","author":"Jeff","date":"August 18, 2010","format":false,"excerpt":"Version 1.2 of the Arduino sketch that powers the AVR HV Rescue Shield is now available for download. The revised sketch now displays the target AVR's existing fuse settings before asking you for new ones. I also cleaned up and reworked the code in a couple places, but these changes\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/mightyohm.com\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7685,"url":"https:\/\/mightyohm.com\/blog\/2015\/07\/hv-rescue-shield-kit-back-in-stock\/","url_meta":{"origin":3955,"position":4},"title":"HV Rescue Shield kit back in stock","author":"Jeff","date":"July 26, 2015","format":false,"excerpt":"HV Rescue Shield kits are (finally) back in stock! \u00a0You can order one here.","rel":"","context":"In "Kits"","block_context":{"text":"Kits","link":"https:\/\/mightyohm.com\/blog\/category\/kits\/"},"img":{"alt_text":"HV Rescue Shield 2","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2010\/12\/HVRescue211-418x500.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2966,"url":"https:\/\/mightyohm.com\/blog\/2010\/06\/hv-rescue-shield-sale\/","url_meta":{"origin":3955,"position":5},"title":"Sale: 20% off AVR HV Rescue Shield","author":"Jeff","date":"June 16, 2010","format":false,"excerpt":"Now through July 9th, order an AVR HV Rescue Shield kit and get 20% off! AVR HV Rescue Shield Kit - $19.95","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/mightyohm.com\/blog\/category\/electronics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2009\/03\/rescue-shield-with-atmega2_scaled-500x375.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/posts\/3955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/comments?post=3955"}],"version-history":[{"count":13,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/posts\/3955\/revisions"}],"predecessor-version":[{"id":15868,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/posts\/3955\/revisions\/15868"}],"wp:attachment":[{"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/media?parent=3955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/categories?post=3955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mightyohm.com\/blog\/wp-json\/wp\/v2\/tags?post=3955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}