Electronic project

File: IMG_3505.png (1MB, 750x1334px) Image search: [Google]

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Underside is hollow...

Just buy a complete kit off eBay with battery pack. https://www.ebay.com/i/262842584761?chn=ps&dispItem=1&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F711-117182-37290-0%252F2%253Fmpre%253Dhttps%25253A%25252F%25252Fwww.ebay.com%25252Fi%25252F262842584761%25253Fchn%25253Dps%252526dispItem%25253D1%2526itemid%253D262842584761%2526targetid%253D322701310020%2526device%253Dm%2526adtype%253Dpla%2526googleloc%253D9010973%2526poi%253D%2526campaignid%253D852954362%2526adgroupid%253D43731965952%2526rlsatarget%253Dpla-322701310020%2526abcId%253D1128856%2526merchantid%253D112138097%2526gclid%253DCjwKEAjwvr3KBRD_i_Lz6cihrDASJADUkGCa6Df7XWaduypSDWZMElxL2E3k6J_7JKy-0SsTrRH0GBoCU_Dw_wcB%2526srcrot%253D711-117182-37290-0%2526rvr_id%253D1242047284621

I do not know the age of your child but i will give you some food for thought.

http://www.foxnews.com/health/2012/08/31/swallowed-batteries-send-thousands-kids-to-er-yearly.html

>>1199651
Open up the easy button and post pics so we can see whats inside
What you are trying to do shouldnt be overly difficult

Also what size is the toy?
Is it like one of those cars you push around a young kid in?

>>1199670
Seems overboard.

>>1199701
Runs off a 9V that I plan on housing under the light bar.

>>1199705
Yea pic related.

Just figured it would be a nice way to get into small electronics.

>>1199705
I'll post the easy button tomorrow. If thread is still up.

File: easybutton_0007[1].jpg (114KB, 620x413px)

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>>1199705
>>1199724
No need to rip open your button when others already have; looks dead simple, a single sided board with the momentary in the middle and some chip on board for the sound.

I generally get my stuff from ebay.

A couple LED's,resistors and some hot glue would light it up.
For the resistor values:
1)subtract the LED forward voltage from the battery voltage to get the resistor voltage.
2)divide the resistor voltage by the LED current to get the resistor value
3)round resistor value up so you don't exceed the LED max current

Example:
battery = 9V
LED forward current = 20mA
LED forward voltage = 2V
---------
1)resistor voltage = 9v-2v = 7v
2)R = V/I = 7v/20mA = 7/0.02 = 350 ohms
3)I think 390 ohms is a standard value

If you want it to flash, look into the 555 timer.