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A shock sensor for pre-season events logging to SD card. credit to the zebracorns: https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py

We Ported it over to pico 2040, added an SD Card writer, and some LED's. See circut diagram and case files to make and print.

The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit). This allows you to sync up multiple units all to the same "time_sync_event". To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer. they should all go red (1) then green (5)

LED Statuses: 1 blinking fast for 10 seconds: Something wrong with SD Card. all LED on: stuck in boot. 2&3 lit: Calculating Noise threshold 2,3,4 Lit: Waiting for First event 4 lit: Waiting for shock 1 single blink less than 2 seconds : Writing to SD card

Running on Adafruit CircuitPython 9.1.3 Install from: https://circuitpython.org/board/raspberry_pi_pico/ Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB. Copy code.py over to the Pico USB drive.

Wire up according to the Impact Sensor.fzz (.png also provided).

Parts List: SD Card: https://amzn.to/4gctrdu SD Card Reader: https://amzn.to/3XgmkZ3 LED: https://amzn.to/3My8YCd ~200 Ohm Resistors: https://amzn.to/3AOs7gT Pico 2040: https://www.adafruit.com/product/4864 ADXL375 Sensor: https://www.adafruit.com/product/5374

Assume that you also have wire, solder, etc..

3D printable case file supplied as well here as a .3mf file and fusion 360 source. You'll need M2 and M3 screws for the case.

Video of it in testing: https://youtu.be/Hgpz41B1Njg

Hopefully we can get some crash data from all your robots!

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A shock sensor for bumper and impact testing

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
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Watchers
2 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
Stars
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Watchers
2 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
Stars
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Watchers
2 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
About
A shock sensor for bumper and impact testing
Resources
Readme
GPL-3.0 license
Activity
Custom properties
Stars
0 stars
Watchers
2 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
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} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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A shock sensor for pre-season events logging to SD card.
credit to the zebracorns:
https://github.com/FRC900/2023RobotCode/blob/main/zebROS_ws/src/adafruit_adxl37x/src/Ada_the_fruit_on_the_acceleratormator.py
We Ported it over to pico 2040, added an SD Card writer, and some LED's.
See circut diagram and case files to make and print.
The default startup is to light all lights (1-5), calculate a "Noise" threshold (2-3 lit), then wait for the first shock event (2,3,4 Lit).
This allows you to sync up multiple units all to the same "time_sync_event".
To sync them up: Put all the units on the same surface, wait till 2,3,4 are lit, then hit the surface with a hammer.
they should all go red (1) then green (5)
LED Statuses:
1 blinking fast for 10 seconds: Something wrong with SD Card.
all LED on: stuck in boot.
2&3 lit: Calculating Noise threshold
2,3,4 Lit: Waiting for First event
4 lit: Waiting for shock
1 single blink less than 2 seconds : Writing to SD card
Running on Adafruit CircuitPython 9.1.3
Install from: https://circuitpython.org/board/raspberry_pi_pico/
Install adafruit_adxl34x.mpy and adafruit_adxl37x.mpy from the adafruit-circutpython-bundle-9.x into the lib folder of the Pico over USB.
Copy code.py over to the Pico USB drive.
Wire up according to the Impact Sensor.fzz (.png also provided).
Parts List:
SD Card: https://amzn.to/4gctrdu
SD Card Reader: https://amzn.to/3XgmkZ3
LED: https://amzn.to/3My8YCd
~200 Ohm Resistors: https://amzn.to/3AOs7gT
Pico 2040: https://www.adafruit.com/product/4864
ADXL375 Sensor: https://www.adafruit.com/product/5374
Assume that you also have wire, solder, etc..
3D printable case file supplied as well here as a .3mf file and fusion 360 source.
You'll need M2 and M3 screws for the case.
Video of it in testing:
https://youtu.be/Hgpz41B1Njg
Hopefully we can get some crash data from all your robots!
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A shock sensor for bumper and impact testing
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