Let's Make Robots!

picaxe 14m2 board

I think some one, read not me it would be a mess at my skill level, needs to make a picaxe 14m2 compact proto board like the one for the 08m but that has a voltage regulator circuit built in so we can use lipo's say able to handle 15v or so  and maybee 2 amps think of the possibilities

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Hi Jax I was thinking of a permanent thing but you idea is way more flexible would be alot better for schools and group classes the ability to drop in componets between the chip and pin thus componet is key, me I like to solder but not every one can

 

I would love to see those boards  - What a great idea about being able to plug into the power rails of a breadboard!

<rant>
Do you understand the way voltage regulators work? If you feed 15V @ 2A into a vreg and expect 5V @ 2A out, the regulator has to convert 20W(10V * 2A) into heat. Most vregs capable of the current you are after are TO-220. That is still a fairly small package to convince to disipate 20W. Think of the heatsink. :)
</rant>

I currently have on order a batch of 7.4V lipos and some 2940 LDO vregs 5V @ 1A. I hope there will be enough headroom to run my wittle bots. There is a 5V @ 3A LDO vreg that is available for a decent price, but, I was just ordering a bunch of stuff from ebay and figured I would see what I could accomplish. :)

Now we have the vreg out of the way. Do you just want the usable pins brought out to 3 pin headers?

Pins would be great but I would like room on the board to slip a resitor or other component of my chioce in between the chip and the pin, 330 for servos, something for different leds or other componets, that kind of thing, the reason I went for 15v was I have access to a bunch of 12v fire alarm batteries, we change them out every year and most are in great shape, and pretty easy to recharge, some of the systems take  6v batteries but they are not as common

I mentioned more about the proto space in our other comment thread but yes, there is a spot for two connections of which you speak. The space is tight on the board and they was a luxury I had problems fitting in but I thought it very handy. I wish there was room for more. If there are more such connections to be made you would need to use a breadboard.

Hi Jax will there be proto room on the board, I love the 08m board because you get some room to play and complete a project on a board

I'm working on a board that will accomodate any of the PICAXE 08/14/and 20 chips that is ~75mm x ~50mm. An ULDO 5V voltage regulator will be included (3A) and the board will be able to plug onto the ends of both 400 and 830 point breadboards to supply the power bus strips. There are other features; I might just have to make some illustrations rather than type type type. It's simple but flexible.

I'm about to send out for the initial prototype PCBs this week, hopefully by tomorrow. I'll keep you in mind.

Jax the breadboard pins would be a flexible extra in my little confused mind, great idea, I was more into an even easier to use proto board, run servos speakers leds but with battery flexabiltiy

Yes, I'm right there with you. There will be three-pin headers in servo output configuration for all pins (from any of the chips) that could have servos run on them. There is also a female header connection for every pin. There is a bank of female headers that allow access to the 5V regulated, unregulated, the second battery (yes! aux power for servos/motors) supply as well as the ground. There is also an area that allows two simple inline connections. Things like a current limiting resistor and an LED, a blocking cap and a speaker, things like that. These extras will allow you to make simple stand-alone projects without a breadboard.

I tried to stay away from the classic protoboard design that has a field of solder pads to test things out with. I was aiming at a board that doesn't have such permanence. No soldering required.