Joe Palmer's instructables
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- Joe Palmer commented on Joe Palmer's instructable Arduino Laser-based Timing System
- Joe Palmer's entry Arduino Laser-based Timing System is a winner in the STEM Contest contest
- Joe Palmer made the instructable Air Quality Sensor: Concept to ProductionView Instructable »
I had the pleasure of making one of these sensors at the AU London event last year. A great product which has clearly been designed with ease of assembly in mind. Great stuff.
- Joe Palmer's entry Arduino Laser-based Timing System is a finalist in the STEM Contest contest
- Joe Palmer made the instructable Air Quality Sensor: Concept to ProductionView Instructable »
Hi had the pleasure of making one of these at the AU London event. A great product which has clearly been designed for ease of assembly.
- Joe Palmer made the instructable Air Quality Sensor: Concept to ProductionView Instructable »
Hi had the pleasure of making one of these at the AU London event. A great product which has clearly been designed for ease of assembly.
- Joe Palmer's instructable Arduino Laser-based Timing System's weekly stats:
- Joe Palmer commented on Joe Palmer's instructable Arduino Laser-based Timing System
Great suggestion, thanks. If you have a link to a good resource on interrupts please let me know.
View Instructable »Thanks for the suggestion. In this configuration would I still connect the Arduino to each of the LDRs with wires? Or use two Arduinos?
- Joe Palmer entered Arduino Laser-based Timing System in the STEM Contest contest
- Joe Palmer followed JON-A-TRON
Great idea! Please see @JamesA41 comment above regarding laser safety though. My system was used in a classroom environment where I had full control of the room, the students and where the laser was pointing. If you plan to use this sort of system on a public street I would stongly encourage you to use a different (safer) light source and to consult relavent local laws to ensure everything you are doing is above board. Thanks.
Good point about the safety aspect. Considering this system was used with older students in a controlled environment, this wasn't really an issue for myself. I can see how using a safer light source would be desirable for STEM teachers with younger students however. Noted for v2.
Hi. Thanks very much for this. I will certainly consider this approach on future projects. I think the ultimate aim with this is to make all sensors and Tx sources wireless using nrf24l01 modules, would synchronising the modulated signals at Tx and Rx still be possible in this case? Or would a different approach be a better bet?
I think there is a real opportunity here to further develop a project such as this for STEM. Students could be set the fairly striaghtforward task of measuring the time a model car takes to travel a set distance, then introduced to various ways to do this. There are also many "levels" to which the students can accomplish the task allowing for lots of differentiation in marking. Ironically the solution I present here is probably the most basic level, more able students could look to replace the Tx and Rx hardware with faster or more reliable components, improve the code for robustness or investigate wireless options.