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adafruit
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Desk of Ladyada - It's a RISC-V kinda weekend
youtu.be/aC3vGKHRCBA
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adafruit@adafruit.com |
1918 followers 148 following 827 posts
Engineer - Founder of Adafruit - A USA Manufacturer, open-source hardware, certified Minority and Woman-owned Business Enterprise (M/WBE) adafruit.com - technical support forums.adafruit.com & order/customer questions support@adafruit.com
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adafruit
@adafruit.com
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Desk of Ladyada - It's a RISC-V kinda weekend
youtu.be/aC3vGKHRCBA
0 replies 1 reposts 4 likes
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adafruit
@adafruit.com
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10% discount code, code is: adalog www.adafruit.com ends at midnight NYC time
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adafruit
@adafruit.com
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ASK AN ENGINEER 6/26/2024 LIVE! youtu.be/000GqZPwpyQ
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adafruit
@adafruit.com
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SHOW and TELL 6/26/2024 youtu.be/d_2yx_bA9Hw
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adafruit
@adafruit.com
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This week, various prototypes, including an IR transceiver and an RS232 transceiver, while testing a USB Type C breakout. Additionally, BlitzCityDIY is working on IoTifying the IKEA VINDRIKTING PM2.5 sensor by integrating a custom board with an ESP32-S2 for easy IoT connectivity.
0 replies 0 reposts 3 likes
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adafruit
@adafruit.com
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Desk of Ladyada - It's an RS-232 world, we just VINDRIKTING in it
youtu.be/viokTEHmqZs
1 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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10% discount code, code is: loadcell www.adafruit.com ends at midnight NYC time
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adafruit
@adafruit.com
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WE ARE LIVE! ASK AN ENGINEER! youtu.be/IMj8gpCgV3E
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adafruit
@adafruit.com
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SHOW and TELL 6/19/2024 youtu.be/_rcwBbP3TsU
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adafruit
@adafruit.com
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Desk of Ladyada - RP2040 Adalogger, C6 Feather, Floppy and some RS-232
youtu.be/FDbl3M8huwE
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adafruit
@adafruit.com
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That way we can chain multiple sensors if desired.
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adafruit
@adafruit.com
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We need a few more components to rectify/average the square wave signal, this is our rough draft. on the attiny816 we might be able to generate a 5 or 10MHz square wave. we also moved the AHT20 to be on a second set of pins we'll bitbang to read the temp/humidity.
1 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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After pondering the Multi-Year Soil Sensor Thread over at zerocharactersleft.blogspot.com/2011/11/pcb-... we decided to make another prototype of our revised I2C soil sensor, this time we'll use the square wave filtering technique rather than the RC-rise-time system.
1 replies 0 reposts 3 likes
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adafruit
@adafruit.com
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Coming soon - Soil sensor gets a square wave update
2 replies 0 reposts 11 likes
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adafruit
@adafruit.com
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10% discount code, code is: splitsup www.adafruit.com ends at midnight NYC time
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adafruit
@adafruit.com
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ASK AN ENGINEER 6/12/2024 LIVE! youtu.be/HDlc8FKCr9o
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adafruit
@adafruit.com
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SHOW and TELL 6/12/2024 youtu.be/fz75Cp58o_o
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adafruit
@adafruit.com
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Desk of Ladyada - DS2484 Testing, RP2040 Adalogger bringup & IrDA youtu.be/Ivm_0VRW-Bg
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adafruit
@adafruit.com
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so here it is! with a micro SD socket, we connect all the SPI/SDIO pins so either interface can be used. We still have space for all the classic "Bones" elements: RP2040 with 8 MB Flash, USB C, battery charging, neopixel and Stemma QT I2C port.
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adafruit
@adafruit.com
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Coming soon - RP2040 "Bones" AdaLogger We decided to take a look back at our RP2040 "Bones" boards, and found that we somehow neglected to make one for SD card interfacing.
1 replies 2 reposts 16 likes
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adafruit
@adafruit.com
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if a device enumerates we know its good! we tested the CC line by plugging it into an apple wall adapter: they're picky about having a 5.1K resistor on the CC pin. that worked too - so now we're good to book final PCBs.
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adafruit
@adafruit.com
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We finally got our USB C plug breakout prototypes put together and now its time to test! of course we love to use our own breakouts when verifying functionality so here we're using our switchable USB adapter to check functionality: power, ground, D+ and D-.
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adafruit
@adafruit.com
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USB C plug breakout prototype testing
youtu.be/0TXsPcjJleE
1 replies 0 reposts 3 likes
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adafruit
@adafruit.com
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10% discount code, code is: uhid www.adafruit.com ends at midnight NYC time
0 replies 1 reposts 2 likes
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adafruit
@adafruit.com
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WE ARE LIVE! ASK AN ENGINEER! youtu.be/2jDJdR5wA-E
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adafruit
@adafruit.com
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WE ARE LIVE! SHOW AND TELL! youtu.be/Eo3y5NlQS6o
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adafruit
@adafruit.com
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(www.adafruit.com/product/374) and a wired sensor (www.adafruit.com/product/381) that i can dunk in a teacup to verify it reports the temperature right.
0 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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so we spun up a prototype board with the DS2484 (www.digikey.com/en/products/...) the latest version from Analog Devices. here i'm testing out my code: with multiple DS18B20's, some TO-92's
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adafruit
@adafruit.com
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We had a customer request for an I2C to 1-Wire converter: handy for when you don't have a spare GPIO, or maybe you can't do fast pin toggling, or maybe you have a single board computer or desktop that you want to connect to 1-Wire devices like the DS18B20.
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adafruit
@adafruit.com
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Prototype board with the DS2484
youtu.be/hWwkeaPC4Y8
1 replies 1 reposts 3 likes
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adafruit
@adafruit.com
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Desk of Ladyada - DS2484 Testing & Round Touch Screen Samples youtu.be/MUO_OD5AN08
0 replies 0 reposts 4 likes
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adafruit
@adafruit.com
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10% discount code, code is: barrel www.adafruit.com ends at midnight NYC time
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adafruit
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WE ARE LIVE! ASK AN ENGINEER! youtu.be/b-oeWFktD_o
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adafruit
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SHOW and TELL 5/29/2024 youtu.be/t6kl6fvgyBI
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adafruit
@adafruit.com
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The RGB LCD Shield kit, previously DIP-based, now features almost entirely SMT components. Additionally, we're updating our RGB LCD Shield and Plate to SMT, seeking compatible tactile switches for a seamless transition.
0 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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Memorial Day weekend edition: improving libraries and revisions. We successfully coded the HDC3022 temperature+humidity sensor with Arduino and GPT-4's help.
1 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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Desk of Ladyada - HDC3022 + RGB LCD Shield revision
youtu.be/sXuS6K62gw4
1 replies 0 reposts 5 likes
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adafruit
@adafruit.com
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10% discount code, code is: pixelt www.adafruit.com ends at midnight NYC time
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adafruit
@adafruit.com
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ASK AN ENGINEER 5/22/2024 LIVE! youtu.be/sJcif2nuwd0
0 replies 0 reposts 2 likes
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adafruit
@adafruit.com
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SHOW and TELL 5/22/2024 youtu.be/SmsUMfGLSGs
0 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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Desk of Ladyada - desk plant health monitoring with sproutsense youtu.be/mPxiROA_Xrs
0 replies 0 reposts 1 likes
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adafruit
@adafruit.com
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we're using the S&K SDA04H1SBD (www.digikey.com/en/products/...) which is rated for 100mA at 5V, so it's not for high current devices, but we like the look of just having 4 compact switches side-by-side and there's lots of microcontroller boards that use under 100mA. Coming soon!
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adafruit
@adafruit.com
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Switchable USB doo-hickey We don't know what everyone calls these things, but basically we wanted a way to easily monitor or detach the power/ground/data pins on a USB connection for power monitoring or data sniffing.
1 replies 0 reposts 10 likes
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adafruit
@adafruit.com
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you can easily connect it to an existing I2C bus and then use the screw terminals to attach multiple DS18b20's - this library looks promising (github.com/pilotak/DS248X) for Arduino. Coming soon!
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adafruit
@adafruit.com
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by special request! this is a DS2484 (www.digikey.com/short/5f85v4tf) Stemma QT board that uses the newest I2C-to-1W controller chip, with ESD protection and support for split supplies.
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adafruit
@adafruit.com
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you can bitbang 1Wire on most microcontrollers, and some SBCs like Raspberry Pi have kernel module support. (learn.adafruit.com/adafruits-ra...) But there might be chips without the 1-Wire capability, or maybe you want to use 1-Wire devices on your desktop computer or other SBC with I2C but no 1W.
1 replies 0 reposts 3 likes
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adafruit
@adafruit.com
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DS2484 I2C to 1-Wire converter ... In theory, there's a lot of 1-Wire devices out there, but in reality almost everyone uses 1-Wire for DS18b20 temperature sensors. the long wire lengths and ease of 'chaining' by sharing a single bus wire makes it perfectly fine for this purpose.
1 replies 0 reposts 1 likes
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adafruit
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10% discount code, code is: trrs www.adafruit.com ends at midnight NYC time
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adafruit
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WE ARE LIVE! ASK AN ENGINEER! youtu.be/FuGx2bqP_K4
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adafruit
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SHOW and TELL 5/15/2024 youtu.be/wXdIm9QDh4g
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