From 8ca4666ec33c475d5c527246d4582b39d0b5a3ed Mon Sep 17 00:00:00 2001 From: Will Bradley Date: Mon, 24 Feb 2014 05:11:30 -0700 Subject: [PATCH] Mounting holes, routing tweaks --- hardware/open-access-interlock-v1-1-relay.pro | 25 -- hardware/open-access-interlock-v1-1.brd | 226 ++++++++++-------- hardware/open-access-interlock-v1-1.sch | 124 +++++++--- 3 files changed, 215 insertions(+), 160 deletions(-) delete mode 100644 hardware/open-access-interlock-v1-1-relay.pro diff --git a/hardware/open-access-interlock-v1-1-relay.pro b/hardware/open-access-interlock-v1-1-relay.pro deleted file mode 100644 index 7bf1cb4..0000000 --- a/hardware/open-access-interlock-v1-1-relay.pro +++ /dev/null @@ -1,25 +0,0 @@ -EAGLE AutoRouter Statistics: - -Job : /home/will/Open_Access_Control - Ethernet/hardware/open-access-interlock-v1-1-relay.brd - -Start at : 00:29:56 (12/23/11) -End at : 00:29:57 (12/23/11) -Elapsed time : 00:00:01 - -Signals : 7 RoutingGrid: 50 mil Layers: 1 -Connections : 9 predefined: 7 ( 0 Vias ) - -Router memory : 3300 - -Passname : Route Optimize1 Optimize2 Optimize3 Optimize4 - -Time per pass : 00:00:00 00:00:00 00:00:01 00:00:00 00:00:00 -Number of Ripups : 0 0 0 0 0 -max. Level : 0 0 0 0 0 -max. Total : 0 0 0 0 0 - -Routed : 2 2 2 2 2 -Vias : 0 0 0 0 0 -Resolution : 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % - -Final : 100.0% finished diff --git a/hardware/open-access-interlock-v1-1.brd b/hardware/open-access-interlock-v1-1.brd index bf2bdd0..08f2be1 100644 --- a/hardware/open-access-interlock-v1-1.brd +++ b/hardware/open-access-interlock-v1-1.brd @@ -6,7 +6,7 @@ - + @@ -117,8 +117,7 @@ Open Access Control Interlock v1.1 Will Bradley, http://zyphon.com/oaci -LCD -39919 +LCD 0 (RX) 1 (TX) 2 @@ -150,13 +149,13 @@ 14 15 16 -GND -V- -V+ -+5V -GND -D0 -D1 +GND +COIL - +COIL + ++5V +GND +D0 +D1 A5 A4 A3 @@ -173,7 +172,22 @@ 8 9 16 -0-24V +0-24V + + + + + + + + + +RELAY PWR +RELAY COIL + + + + @@ -763,17 +777,17 @@ design rules under a new name. - - - + + + - - - + + + @@ -784,29 +798,36 @@ design rules under a new name. - + - - + + - - - + + + - - - + + + - + - - + + + + + + + + + @@ -831,11 +852,9 @@ design rules under a new name. - - - - + + @@ -846,24 +865,23 @@ design rules under a new name. - - - - - - + - - - - - - - - + + + + + + + + + + + + @@ -904,10 +922,8 @@ design rules under a new name. - - - - + + @@ -938,15 +954,15 @@ design rules under a new name. + + - - - - - + + + @@ -965,12 +981,12 @@ design rules under a new name. - - - - - - + + + + + + @@ -1007,40 +1023,39 @@ design rules under a new name. - - - - + + + - - + + - - - + + - - - + + + + + - - - - - - - + + + + + + @@ -1051,42 +1066,51 @@ design rules under a new name. - - - + + + + + - - - - + + + + + + + - - + + + + + - - + + + + - - - + + + - - - - - - + + + + + diff --git a/hardware/open-access-interlock-v1-1.sch b/hardware/open-access-interlock-v1-1.sch index 8cfa9de..3b07a37 100644 --- a/hardware/open-access-interlock-v1-1.sch +++ b/hardware/open-access-interlock-v1-1.sch @@ -6174,7 +6174,7 @@ Source: http://onsemi.com - + @@ -6195,7 +6195,7 @@ Source: http://onsemi.com - + @@ -6204,11 +6204,42 @@ Source: http://onsemi.com - + + + +"Relay_Signal" is the ground +side of the relay coil. When the +transistor turns on, it lets current +flow through the relay using low-side +switching. + +The TIP31 NPN transistor appears to +support up to 40 volts in this +configuration. + +The Arduino will supply slightly +less than 5V which is above the +0.7V saturation voltage for this +chip. This arrangement will then +let that flow through the transistor +(B-to-E?) to the V- external ground. + +The transistor will then allow the +V+ current to flow through to V-, +allowing current to flow through the +relay coil, powering it and actuating +the relay. + +By having the transistor switch the +ground of the relay power instead of +the positive side, we avoid having +to saturate the transistor at higher +voltages or worry about supplying it +somehow. @@ -6244,37 +6275,46 @@ Source: http://onsemi.com - + - + + + - - - + + + + + + + + + + - + - + - + - + - + @@ -6482,6 +6522,16 @@ Source: http://onsemi.com + + + + + + + + + + @@ -6542,29 +6592,29 @@ Source: http://onsemi.com - + - + - - + + - - + + - + @@ -6586,24 +6636,24 @@ Source: http://onsemi.com - + - - - - - + + + + + - - - - + @@ -6612,11 +6662,17 @@ Source: http://onsemi.com - - - - + + + + + + +Since Version 6.2.2 text objects can contain more than one line, +which will not be processed correctly with this version. + +