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Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

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Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#121

I want to start working with arduino/raspberry pi/esp32/sensors. What would be a good source to buy these in bulk (along with accessory components. e.g. wires etc.)?

Take a look at adafruit and sparkfun

You can find kits that have a selection of sensors - enough to get started and experiment

https://www.adafruit.com/product/193

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#122

I want to start working with arduino/raspberry pi/esp32/sensors. What would be a good source to buy these in bulk (along with accessory components. e.g. wires etc.)?

Aliexpress is king for cheap IoT modules/accessories

https://www.aliexpress.com/w/wholesale-esp32-s3.html

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#123
post #98
post #32

Earlier quoted context omitted.

Isn't that included in the lane price? Always has been for me.

Which could be removed, which I, a customer, would very much enjoy. Bowling prices are absolutely insane these days. Haven't been in over 10 years. Related, nearly all of the bowling lanes in my area are empty, except for birthdays/work events.

The last few times I tried to go bowling I was turned away because I was the wrong kind of customer. I didn't know when my kind was allowed (it wasn't on the outdoor signs). Layer I learned the right times but they were all weirdly inconvenient.

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#124
With the dark patterns and lock in of LaneTalk I'm wondering if you plan at all to provide scorings to end users at all. Been getting sick of lane talk. I'm also wondering if you have any idea how LaneTalk gets their data and if it's possible to go to the source.

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#126

Right now I'm working on adding LED + DMX DJ light control - I kinda want to be able to order LED strips to "chase" a ball as it goes down the lane or back up the return. I plan on triggering laser-light shows and such with the DMX controller. Eventually, I want to allow a customer walk up to the lane, tap to pay and start bowling immediately, too. Kiosk-ize bowling alleys, yknow? I'm pumped. So much room for activit…

Tap to pay probably doesn't help with getting people into the alley but probably helps with 'one more game'. Your beginners have to come for shoes anyway, and the pointer to which lanes to take (you don't want them taking a lane at 6:30 that's reserved at 7)

At least you could display a message that says "this lane is reserved. Open lanes: 6, 7"

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#127

Thank you for posting this, it reaffirms what I've been thinking for so long. There are many opportunities to retrofit old systems of all types with modern low-cost embedded technologies. Around 2019 or so I was approached by an engineer who had a small business retrofitting very old machine tools with modern motion controls. Think very large lathes and planers. The problem they had was that in order to get these sys…

> retrofitting very old machine tools with modern motion controls.

I have a friend who has automated an old food production line. Eg peanut butter making, Muslie roasting etc.

With no background in programming he got machines hooked up measuring various things - eg peanut butter levels with ultrasound, roast temps, rotation rates.

Zero version control and eyebrow raising methods but massive improvement in safety and throughput. Really impressive.

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#128

Right now I'm working on adding LED + DMX DJ light control - I kinda want to be able to order LED strips to "chase" a ball as it goes down the lane or back up the return. I plan on triggering laser-light shows and such with the DMX controller. Eventually, I want to allow a customer walk up to the lane, tap to pay and start bowling immediately, too. Kiosk-ize bowling alleys, yknow? I'm pumped. So much room for activit…

I'll throw out two quick suggestions for you:

- DMX kinda sucks but it's manageable. Cabling isn't cheap, it really wants shielded 120 ohm cable. If you do go that route, don't cheap out and use Mic cable or Cat-5, you'll be chasing ghosts forever.

- However... Art-net is an absolutely brain dead simple protocol that you can run over WiFi or ESP-Now if you don't care about it being perfect, or over Ethernet with an ESP32 with an Ethernet PHY or a Teensy or similar. I'm serious, you can implement it in an afternoon. Lots of COTS lighting controllers can talk Art-net, and you'll be amazed at how trivial it is to make a Python script to blast out the appropriate UDP packets.

- sACN is the new kid on the block for this stuff though and it's a little more complex. Not to shill LLMs... I hadn't actually heard of it before, Claude mentioned it and then one-shotted both a server (ESP32-side) and a test client (Python). There were a couple little bugs, but about two hours from never having heard of the protocol to having existing COTS lighting design software talking to it was pretty dope.

The other annoy bit with DMX: it's 250kbaud RS485, so it's not always trivial to just make a USB-serial-RS485 adapter that will actually run at that baud rate. With the Art-net/sACN approach, it is trivial to get an ESP32 or similar to run at that baudrate and drive the RS485 DE pin correctly as well.

Enjoy!

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#129

Earlier quoted context omitted.

It's because the way the sole slides is an integral part of bowling the ball. You can't play "properly" without a proper sliding bowling shoe. I was a little surprised when the local bowling centres stopped bothering to make everyone use the proper shoes. I get what you're saying about playing casually, but when I last went bowling with colleagues, and won comfortably, and others were asking for tips because they jus…

Appreciate the good answer. Out of curiosity, ofder of magnitude how much would a person need to be bowling to get good enough that choice of shoe matters?

Socks with no shoes are good enough for amateurs. Maybe even better than the worst bowling shoes. I'm not sure where the level of shoes matters is crossed, but socks gets that a lot farther than street shoes.

Re: Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

#130

Professional techie and amateur bowler here. I am bowling on old-ish lanes, and the stats we have beyond the score is... well, ball speed only and it barely works on half of the lanes only. I doubt that our alley would ever agree to install anything ad-hoc, but I am super interested in finding out more about your build. If you have a blog, or can post photos and some information about your build I would be glad to re…

Perhaps with strategic striping on the ball they could also get angular velocity, could come up with some very cool stats. Or if you're really having fun, microchip every ball with an accelerometer / gyro
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