| 07:09 | jnettlet | topi`, yeah it looks like you use the a0-2 pins to set the address so different devices can talk on the same bus. |
| 09:53 | topi` | thanks guys, I'll have to try some soldering and then we'll see some results :) |
| 09:54 | topi` | I'm going to measure the difference between incoming and outgoing water (used to transfer heat into the hot water vessel) |
| 09:54 | topi` | the HB is already controlling the electrical heating element aspect |
| 09:54 | jnettlet | wow, you are going full in |
| 09:56 | jnettlet | if you start monitoring the power usage you will be able to see how much you save. |
| 11:20 | topi` | jnettlet: yes it'd be nice to have some statistics |
| 11:21 | topi` | I want to control the circulation pump that forces the water to the heater and back to the vessel, when there's no heat coming in then it's not useful to run the pump |
| 11:22 | topi` | this could directly be applied to a solar roof (water cycle) as wel |
| 11:22 | topi` | since it is clear that at night, there will be negative heat coming in because of irradiation against clear skies |
| 11:23 | topi` | jnettlet: do you have a person in Solid-run who's responsible for collecting "IoT user stories" ? |
| 11:26 | vpeter | topi`: be careful this not happen to you :) http://metropolitan.fi/entry/ddos-attack-halts-heating-in-finland-amidst-winter |
| 11:27 | topi` | vpeter: it seems there was some reboot loop because of loss of connectivity :) that's not very wise |
| 11:27 | topi` | my system falls back to "assumptions" about the price of electricity if it cannot access the current price via internet |
| 11:34 | jnettlet | topi`, if you just want to do a forum post for now, or a blog post we can work from that. |
| 11:34 | jnettlet | What distro are you running from? |
| 11:39 | topi` | debian jessie |
| 11:40 | jnettlet | nice and simple |
| 11:49 | topi` | I have had no problems whatsoever with these Jessie images provided by Artox |
| 11:49 | topi` | there's just an odd brcm_patch process running that blocks one serial port, but nevertheless... |
| 11:50 | topi` | I have further questions about HB Gate and the CANbus, but I guess I should direct them at rabeeh |
| 11:50 | topi` | we're looking for a box that could connect to a vehicle's CANbus and transmit the bytestream in real time over 3G |
| 11:50 | topi` | sounds like a perfect fit for a HB Gate |
| 11:51 | topi` | but I'm unsure how to access the CANL and CANH signals that are visible in the schematics but I cannot find them on the silkscreen |
| 11:53 | jnettlet | topi`, that is the uart that is dedicated to the BT device on the microsom |
| 11:53 | jnettlet | the brcm_patch is the BT firmware loader |
| 11:54 | topi` | right |
| 11:54 | topi` | jnettlet: have you tried reading anything from the CAN bus? |
| 11:54 | topi` | I guess a car could come in handy ... :) |
| 11:55 | jnettlet | we have quite a few customers using CAN |
| 11:55 | topi` | the Gate can probably take 12 volts directly from the car 12V socket |
| 11:55 | topi` | with a suitable adapter |
| 11:56 | jnettlet | sure, it is no problem. it supports 9-22V if I remember correctly |
| 11:56 | jnettlet | I have definitely run it from an 18V adapter |
| 12:01 | topi` | do you know of any code examples how to use the FlexCAN on the i.mx6? |
| 12:01 | topi` | I guess you have to setup it just like any synchronous serial port? |
| 12:03 | jnettlet | you need to change the device-tree to enable the canbus and re-mux the pins appropriately. |
| 12:03 | jnettlet | then I believe you need a CAN transceiver to attach to the pins. |
| 12:04 | topi` | right |
| 12:04 | topi` | I'll do some further googling :) |
| 12:05 | jnettlet | it should be pretty well documented. I have only done the kernel device-tree part of things |
| 12:05 | topi` | maybe it's easiest to start with this CAN-spi-click board thingy |
| 12:06 | topi` | http://www.mikroe.com/click/can-spi-3.3v/ |
| 12:06 | topi` | SPI I know already :) |
| 12:15 | jnettlet | do you have access to the CAN bus of your car? |
| 12:43 | topi` | I am not sure, I have to try out |
| 12:44 | topi` | there is one ODB-II type connector, so my guess is yes |
| 12:47 | bencoh | topi`: sounds like a nice project, btw :) |
| 12:48 | topi` | which one? reading the CAN bus or driving the hot water system of a house? |
| 12:49 | bencoh | haha both, but especially the car-CAN <-> phone gateway |