# Firebeetle Gas Sensor, Cheap RISC-V Linux, $20 Synth, and more!

- Show: [The Electromaker Show](https://hardwarepodcasts.com/podcast/the-electromaker-show)
- Published: 2024-03-11
- Length: 8m
- Episode: 137
- Page: https://hardwarepodcasts.com/podcast/the-electromaker-show/2024-03-11-firebeetle-gas-sensor-cheap-risc-v-linux-20-synth-and-more
- Listen: https://electromaker.libsyn.com/firebeetle-gas-sensor-cheap-risc-v-linux-20-synth-and-more

## Summary

The host highlights a Firebeetle 2 gas sensing project by Ralph J. Y., which uses an ESP32-based board, a Siege Studio multi-channel gas sensor, and Node-Red for MQTT visualization. The episode also covers the BP Synth, a $20 synthesizer built with an STM32 Black Pill and an I2S DAC, featuring tutorials by Synthetech and Floyd Steinberg. Additionally, the show announces the Zimablade winner and features the Micro:Bit V2 as the Product of the Week.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-electromaker-show/2024-03-11-firebeetle-gas-sensor-cheap-risc-v-linux-20-synth-and-more#t=0) Introduction and Firebeetle 2 Gas Sensor Project

## Topics

- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Maker community & events](https://hardwarepodcasts.com/topic/maker-community)

## Most relevant to

makers and hobbyists

## Mentioned

- Firebeetle 2 (product)
- ESP32 (chip)
- Siege Studio (company)
- Node-Red (tool)
- STM32 (chip)
- Synthetech (company)
- Floyd Steinberg (other)
- BP Synth (product)
- Micro:Bit V2 (product)
- LicheeRV Nano (product)
- SG2002 (chip)

## Related episodes from other shows

- [Ep042: Capacitive Earthquakes, GRBL on ESP32, Solenoid Engines, and the TI-99 Space Program](https://hardwarepodcasts.com/podcast/hackaday-podcast/2019-11-01-ep042-capacitive-earthquakes-grbl-on-esp32-solenoid-engines-and-the-ti-99-space) (Hackaday Podcast)
- [Ep 366: DOOM on a Toaster, Music in LED Strips, and Old Drives in New Clothes](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-04-17-ep-366-doom-on-a-toaster-music-in-led-strips-and-old-drives-in-new-clothes) (Hackaday Podcast)
- [Ep 183: Stowaway Science, Cold Basements, and Warm Beers](https://hardwarepodcasts.com/podcast/hackaday-podcast/2022-08-26-ep-183-stowaway-science-cold-basements-and-warm-beers) (Hackaday Podcast)
- [Ep 208: Hallucinating Robots, Floppy Cartridges, and a Flexure Synth French Horn](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-03-03-ep-208-hallucinating-robots-floppy-cartridges-and-a-flexure-synth-french-horn) (Hackaday Podcast)
- [Ep104: Delicous AI, DVD Scanning Microscope, and Battery-Friendly Microcontroller Designs](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-02-05-ep104-delicous-ai-dvd-scanning-microscope-and-battery-friendly-microcontroller-d) (Hackaday Podcast)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/the-electromaker-show/2024-03-11-firebeetle-gas-sensor-cheap-risc-v-linux-20-synth-and-more. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to The Electromaker Show.