Hollow Clock 4 Wifi (remix using m5stamp C3)

thingiverse

This is a light remix of the Hollow Clock 4 by Shiura Before all, many thanks to him for this amazing design Main modifications are: - use a M5STAMP C3 for controlling the stepper - as a consequence, the box has been modified to integrate it - time synchronisation through WIFI - parameterization and tuning through Web pages - (optional) remote logging using telnet 13/08/23 update sketch : fix blocking at midnight when no wifi available + better "roaming" (change wifi network dynamically according to disponibility) Modified or new parts are prefixed HC4- Parts with ARB indication needs arborescent support, SUP means any type of support (and no indication means no support) HC4-box-c3: remix of the box, providing space for the C3 (black one in pictures) HC4-box-c3-no-feet: the same design, but without "feet" (blue one in pictures) HC4-box-cap: cap to feet these boxes; it also adds a part for blocking the axes HC4-motor-blocker: piece to block the motor (may need to tune the thickness according to your brand of stepper) HC4-hour-hand-2.5mm-shorter: a mid-sized hour hand (in my case, the 5mm shorter is not suitable) HC4-hour-cap: filler for the magnet hole HC4-cover-cust: rotor cover with added markers (5 min spacing) - downside: needs to be printed with support (arborescent for easy removal of the support ... and using less material) The idea is to print the markers in a different colour using the "Filament change" script (under Cura, M600 gcode, if supporter on your printer); you may also use the standard rotor-cover.stl if not interested by this version HC4-pin: pin for the upper fixation of the cover (improve look) Other parts come from the original model: hour-rotor.stl min-rotor-thick-hand.stl or min-rotor.stl rear-cover.stl bevel-gear-small-hole.stl or bevel-gear.stl min-drive-gear.stl min-drive-gear-axis.stl worm-gear_fixed.stl washer1-optional.stl washer2-optional.stl Since the space in the box is limited, cabling between the C3 and the stepper controller card is soldered The pin used are: 0 to IN1, 1 to IN2, 8 to IN3, 10 to IN4 Concerning the sketch hollow-wifi.ino, the first section contains all the tuneable options; the main ones are: - TZSTRING needs to be updated according to your geographic location for managing Timezone and Daylight-Saving Time appropriately - SSID and password if smartconfig not used (up to 5 credentials allowed; exact number to set in NB_SSID) - MAN_12H uses the original way for initializing the clock (unset by default since there is a more friendly way of doing it through Web) - USE_TELNET allow retrieving logs through telnet; require to install TelnetStream2 through "Manage libraries" Logs are retrieved though a telnet client (such as putty). You should ask the client to convert LF into CR+LF Compiling the sketch requires to install ESPAsyncWebSrv ("Manage libraries") Recommended way to set the clock (when MAN_12H not defined): - when powering the clock, it starts clocking from the current position - through the web page at the clock IP address (to be retrieved from your box admin menu), select the option "Adjust Offset" - indicate the time currently read on the clock; the clock automatically starts to move until the actual time position is reached - going back to the Home page and selecting "Tune" permits fine tuning (However, since there is some lag in the gears, this should usually be performed in several steps, with small increments/decrements) The Home page itself permits to enter or leave test mode (test mode accelerate the movement of the clock) You may also program a sleep time interval; since the clock is quite slow to tune the hour, it is a good idea to use stop and start times as close as possible (ex: from 9pm to 9am or 8am) Update options permits to smooth the movement (update every 10 seconds or even second). The drawback is an increase of the motor usage (the motor may become hot - more consumption also) Heartbeat blinks the light every second (not useful since the C3 is inside the box)