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ClemensValens 1 day ago
Supposing you are referring to the DS1307RTC by Paul Stoffregen, you could try the following (I don't have a DS1307, so I can't test it): 1. Open the library file DS1307RTC.cpp. 2. Search & replace all instances (67 or so, let your editor do this for you) of 'Wire' by 'MyWire' except for the very first at the top of the file, ie do not change the include: #include <Wire.h> 3. Save the file. 4. Add the following define in the sketch before the inclusion of the file DS1307RTC.h: #define MyWire Wire1 #include <Time.h> #include <TimeLib.h> #include <DS1307RTC.h> Without the define the library wil use I2C0 as before, with it, it will switch to I2C1 instead. 5. Compile the sketch. After these modifications the ReadTest example compiles without warnings & errors (it does for me). Final note: you are bound to forget that you modified a library, so it is better to rename the modified library to avoid strange errors in other sketches that rely on the same library.  
Elektor Uno R4 [150790]
Quenton 3 days ago
Mostly complete now in a 3U case from hifi2000 with 120mm x 300mm heatsinks, weighing in at 20kg(!). Custom 420VA transformers from Canterbury Windings (240V primary, 41V AC off load, very tight regulation 3-4%). Each includes integral electrostatic shield and external magnetic shield. For each channel: 4x Vishay 101 10mF caps plus one Fairchild 35A bridge rectifier. ESP soft start (Project 39) with a dedicated 6VA transformer. Currently starts on a 3A fuse but will try also 2.5A. Shaffner mains inlet switch, dual-pole mains filter and fuse fits neatly between the filter caps. Sounds great, no audible hum or buzz. Thoroughly enjoyed this project. Now just need a preamp...
Q-Watt - Simple Audio Power Amplifier (110656)
Calpe 4 days ago
A good reason then to update the Preamplifier being that is has been a very popular project using the existing circuit with modifications and/or additional circuit
Preamplifier 2012 (1) - introduction and line-in/tone/volume board (110650)
TechDoc 4 days ago
My son is not a very good driver, and it is really not easy to park in his garage. The problem is also the "dead angle" : when the car advances, he has to look frontward and on each side at the same time in each rearview mirror. This will be very helpfull  . . . for him ! (Each car door is still scratched . . .)  
Easy Parking System [170080]
Wil Dijkman
Wil Dijkman 4 days ago
I am not so sure that this idea is very handy. I have also a "parking assist" in my garage: it consists of a small mirror at the ceiling and a line at the floor. When I see in the mirror, that the front of the car passes the line, I have to stop... Kind regards Wil Dijkman
Easy Parking System [170080]