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Otávio Pinheiro

@tavisco@bolha.us
mastodon 4.6.4
  • Open on bolha.us

I'm someone who likes to write code and mess with old hardware.

I mostly write Kotlin/Java for backend at work, and C for personal projects these days. And also self host a lot of stuff on my homelab.

I speak portuguese, english and spanish as well.

0 Followers
0 Following
4 Posts
Joined October 02, 2023
Homepage:
https://tavisco.dev
Github:
https://github.com/Tavisco
Palm OS:
https://palm.tavisco.dev

Posts

Open post
tavisco
Otávio Pinheiro @tavisco@bolha.us · Jan 29, 2026
Otávio Pinheiro
@tavisco@bolha.us

I'm someone who likes to write code and mess with old hardware. I mostly write Kotlin/Java for backend at work, and C for personal projects these days. And also self host a lot of stuff on my homelab. I speak portuguese, english and spanish as well.

bolha.us
Replying to @tavisco@bolha.us
Just ran a table before buying anything, and luckily I'll not run into I2C address conflicts! Also I've downloaded all the datasheets for the new components. Looking forward on exercising C programming again :)
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Open post
tavisco
Otávio Pinheiro @tavisco@bolha.us · Jan 29, 2026
Otávio Pinheiro
@tavisco@bolha.us

I'm someone who likes to write code and mess with old hardware. I mostly write Kotlin/Java for backend at work, and C for personal projects these days. And also self host a lot of stuff on my homelab. I speak portuguese, english and spanish as well.

bolha.us

Okay, #TaviscoMacropad V4 is coming to life! Just bought the parts from AliExpress:

  • A second screen (a black/white/red e-ink this time)
  • A VML7700 lux sensor
  • A APDS-9960 moviment sensor
  • SGP41 and SCD41 air quality sensors
  • INA226 current sensor
  • An SD Card SPI interface
  • Piezo buzzer
  • And a MCP23017 GPIO expander as the Raspberry Pi Pico will ran out of usable GPIOs because of the key matrix :)

:raspberrypi:

I'm excited!

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Open post
tavisco
Otávio Pinheiro @tavisco@bolha.us · Jan 29, 2026
Otávio Pinheiro
@tavisco@bolha.us

I'm someone who likes to write code and mess with old hardware. I mostly write Kotlin/Java for backend at work, and C for personal projects these days. And also self host a lot of stuff on my homelab. I speak portuguese, english and spanish as well.

bolha.us
Replying to @draconigen@packmates.org
@draconigen@packmates.org @stacksmashing@infosec.exchange whoa! Good catch! Very interesting indeed
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Open post
tavisco
Otávio Pinheiro @tavisco@bolha.us · Jan 28, 2026
Otávio Pinheiro
@tavisco@bolha.us

I'm someone who likes to write code and mess with old hardware. I mostly write Kotlin/Java for backend at work, and C for personal projects these days. And also self host a lot of stuff on my homelab. I speak portuguese, english and spanish as well.

bolha.us
@stacksmashing@infosec.exchange Never saw ascii art on bin dumps before (not that I’ve seen many anyway) haha neat!
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