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Final project

  • All Hardware files (DXF, KiCAD files, Fusion360 Files, GCodes, SCAD, FreeCAD files, CAM files) are licensed CERN-OHL-W.
  • All code files (Arduino INO, C++ code, Python files, Javascript files) are licensed GPLv3.
  • All all textes, drawings, screenshots and pictures originally made for this project are under copyright CC-BY-SA.

The licenses are at the root of the repository. More info on Week17 page.

Concept

concept

The idea is when I commute by bike in the countryside, sometimes I'm feeling in danger. Especially near my house, where there is a stone quarry with trucks that use the same small road I need to take to go to work.

So the Idea is to create a special traffic sign that I'll ask to put at the stone quarry. The sign can be activated with LoRa with a small module put on the bike called Wally (from Where is Wally?).

The sign will show the distance of the bike and the first name of the driver.

Inspirations and similar projects

Project development

Bill of Materials

Traffic Sign

SectionComponentCharacteristicsQtyUnitCost UnitVendor/BrandTotal Cost
FrameP. P.Thickness 1mm0,816,25 €Sotradis13,00 €
PlywoodThickness 5mm220,00 €Sotradis40,00 €
Acrylic glassThickness 2mm-A3 size1piece8,00 €Juliyeh8,00 €
Reflective vinyl30x100cm1piece2,09 €Old Local Store2,09 €
Bike LEDsRed LEDSMD 120620piece0,18 €AEDIKO3,60 €
Resistors200 Ohm SMD 120620piece0,03 €Go Tronic0,60 €
Copper Foile Tape20cm x 30cm1piece2,00 €QWORK2,00 €
BoardCopper PCBFR1 – 7x10cm1piece0,60 €0,60 €
XIAO SMAD211piece6,40 €Go Tronic6,40 €
LEX Matrix screen8x32 WS2812B LED1piece11,44 €11,44 €
Total87,73 €

Wally

SectionComponentCharacteristicsQtyUnitCost UnitVendor/BrandTotal Cost
BoardCopper PCBFR1 – 7x10cm1piece0,60 €sourcing map0,60 €
XIAO ESP32C31piece6,40 €Go Tronic6,40 €
Resistors180 Ohm SMD 12061piece0,03 €Go Tronic0,03 €
Resistors10k Ohm SMD 12062piece0,03 €Go Tronic0,06 €
PushButton12mm square2piece0,55 €Sparkfun1,10 €
FM transmitter1piece4,39 €Go Go Store4,39 €
LoRa transmitterRF SX1276 - 868Mhz1piece5,74 €Wireless Life Store5,74 €
BatteryLipo3,7V – 500mAh1piece3,00 €LW Battery Store3,00 €
OLED Display0,96 inch I2C module1piece2,69 €Fnd Chips Store2,69 €
CasePLA filament2,85 mm3,00 €m0,15 €0,45 €
Acrylic Glass11x25mm1,00 €piece0,00 €0,00 €
Total24,46 €

Future developments

It will be nice to develope a bit more this project, to try to equip a road with some signs. More infos on what could be made for the future of the project on the week17 page.