pyerxa: #edwinjcolon Aloha Edwin - been thinking of a lot of different design …

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pyerxa

#edwinjcolon
Aloha Edwin - been thinking of a lot of different design challenges I can do with circuits (I try to design my challenges to fit what my students are interested in). I usually use the motors from the solar sprint and then add a switch. I would love to use some type of bluetooth device that could initiate closing the circuit (act as a switch). Gonna try get one of the 433MHZ 1CH DC 6V Wireless remote control switch relay controller module transmitter receivers you showed my on Amazon. If for some reason you run into something better please let me know. Mahalo

May 7 2019 - 10:39pm
edwinjcolon's picture
edwinjcolon

Aloha Paige,

Thanks for your post. We'll keep looking to for a better option to meet your needs. If we find something better, it will be posted in this thread for everybody's benefit. Please let me know how it goes if you test the wireless remote switch. Thanks!

May 9 2019 - 3:58pm
pyerxa's picture
pyerxa

Aloha Edwin - when I type "433MHZ 1CH DC 6V Wireless remote control switch relay controller module transmitter receivers" into Google and then click "shopping" a handful pop up. Which would you get if you were using them on small cars? Right now we are using the solar sprint cars but I eventually want to do away with the solar panel and maybe use a 9V battery if the motor can handle it. U think the solar sprint motor can handle 9V? The solar panel is only 3.3V.

Jun 11 2019 - 3:52pm
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edwinjcolon

Aloha Paige,

I found a new wireless remote control switch that might work better for your future applications. This is the link: https://www.amazon.com/Anntem-Wireless-Transmitter-Universal-Controller/...


The answer to your question if the Solar Sprint motor can handle 9V is NO. The specification for the solar sprint motor recommends an operating voltage between 0.5V and 3V.


Thanks

Jun 12 2019 - 10:34am
pyerxa's picture
pyerxa

Mahalo Edwin - I ordered one just to try it out. Wanna make a challenge like the solar sprint challenge but wo the solar panels. I find that when creating a design for the car because the solar panel is so big and needs to be exposed it doesn't give the kids a lot of option of how to design their car. We tested the solar panel at a bunch of different angles and found that it doesn't matter the angle it is pointed so much so as long as it is kinda towards the sun. It more matters how its on to work with the aerodynamics. I will probably stick to my solar sprint motors with 2 AAA batteries while I have them. If the STEM pre-acadamey orders any altimeters or remotes please keep in mind that they will be used :) We usually have about 4 groups doing the rockets and cars. Mahalo for your help!

Jun 17 2019 - 8:09am
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pyerxa

I just got the remote you told me to. It has a Input GND+, VCC+ in and out, & Output GND-. What do I hook up to each? It says something about the input power being the GND+ and VCC+ in and load appliance to VCC+ out and GND-. I'm not sure. There is a black wire on one side, two red wires between, & a yellow wire on the other side. I would attach a picture but I cannot in this website. What part do I add to my circuit? What do I use the extra 2 wires for? Does it need a resistor?

Jun 24 2019 - 3:31pm
edwinjcolon's picture
edwinjcolon

Aloha Paige,

That was quick! I noticed the instruction diagram on how to connect the board can be confusing. The Input Ground (GND+) should be (GND-). You will need a battery Holder from 3.5 V up to 12 V. (i.e. from a 2 or more AA batteries up to a 12 Volt battery)

The way to connect the board is the Black Wire (GND-) and the Red Wire (POS+) next to it will connect to your battery holder (3.5 V up to 12 V). Red to Red and Black to Black. The output wires Red (Pos+) and Yellow (GND-) will connect to the motor. Red to Red and Yellow to Black. Let me know if this makes sense. Mahalo!

Jun 24 2019 - 4:58pm
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sasakidy

Thank You.

Jun 25 2019 - 2:15pm
edwinjcolon's picture
edwinjcolon

Anytime. Let me know if you need anything else.

Jun 25 2019 - 4:11pm
pyerxa's picture
pyerxa

Aloha Edwin - I ordered a few 3.7V lithium rechargeable batteries to try out (w/ some battery holders). I have chargers for AA that are adjustable. Can I charge a 3.7V on the 1.5V charger? Also, wanted to buy some twist wire connectors on Amazon. Approximately what guage wire do you think I should buy it for considering the wires we use for the remotes, battery holders, & alligator clips?

Jul 3 2019 - 10:38am
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edwinjcolon

Hi Paige - I will need the brand and the model of the charger to verify the Specs and answer your question about the charging the batteries. Just in case, this charger can charge your batteries: https://www.amazon.com/Intelligent-Snado-Universal-Rechargeable-Batterie...

There are higher capacity chargers in case you need to charge more than two batteries at once.


Would recommend buying wire gauges 20 or 18 and Easy Twist-on Caps Grey Color (For wires Gauge 22-14).
https://www.amazon.com/Grey-Wire-Connector-Twist-Ribbed/dp/B07C9X6L1B/re...

Jul 3 2019 - 12:07pm