Featuring: custom designed PCB, SRF05 ultrasonic range finder, on-board 6v power and 3D printed PLA housing.
Otherwise, please copy and paste this web address into your browser bar:
Finally made the HPM in strip board an instructables. Hopefully it will grow and develop as people engage with it!
Using transfer paper and then etching process I was able to create this circuit board. Needs to be drilled out and then all electronics can be soldered on!
This is the second strip board module that I have built. It changes the orientation of the arduino and sensor and places them vertically while facing the potentiometers outward, creating a ‘T’ layout. Hopefully leading to a tidier and more compact housing. Again the power source is external to the circuit and not included as size and the appropriate battery holder were still being sought after (now found!).
This is my first attempt at a single pcb module. All elements except for the battery have been soldered to the strip board. This allowed for two things, shrinking and tidying the module while teaching me about circuit layouts and considering layout to suit size.
Images of the first module build, from CAD render to 3D printed housing to wiring assembly. The final outcome is an unsuccessful module. It will require disassembly and reassembly outside of the housing to debug and diagnose any problems. Stay tuned…
Haptic Proximity Module
‘Low vision’ (LV) is a common form of vision impairment that involves irreversible vision loss – significantly reduced vision but not total blindness and hence still usable vision – affecting 246 million people globally.
The project aims to develop an open-source haptic proximity module (HPM) costing approximately $50, which will enable LV users to engage with their direct environment via interactive touch as a measure of closeness. This contributes to the discourse on wearable assistive technology while incorporating off-the-shelf components to create an accessible ‘do-it-yourself’ project.
After conducting a study of LV, its effects on an individual’s functional independence and available assistive technologies, the project’s findings show that people with LV are still reasonably independent within the home, but outside the home this independence begins to deteriorate. The available products are expensive and narrow in application, lacking cheap and readily available haptic devices that extend a LV user’s perception of their immediate surroundings.
The outcomes of this research explore how these findings can be addressed to positively impact on the interaction of LV users with their surroundings. The larger goal of enabling a broader LV user group is then achieved through developing low cost HPMs.