
Sequencer
zueblin/Polaron
A DIY drum machine for the teensy microcontroller (hardware / software)

A breakout board and python class for using it. Intended to add fun bling to FRC robots.
Breakout is an open-source printed circuit board by 2468shrm, from the 2468shrm/msgeq7 repository on GitHub. It is a 2-layer board of 32.5 × 25.4 mm with 12 parts on 11 nets, routed with 28 tracks and 2 vias.
It is built around the SJ-3523-SMT-TR. Its parts include 4 capacitors, 4 connectors, 2 resistors and 1 IC. It belongs with the interfaces and adapters boards of this library.
A PCB to interface an MSGEQ7 seven channel graphic equalizer IC to my smart sensor platform link. The board has a microphone input jack, the MSGEQ7 IC, and three 3-position square pin headers. One header for RESET, one for STROBE, and one for the analog OUTPUT. These are connected to two DIOs and an AIN, respectively.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J3, J4 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 200k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 30pF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | MSGEQ7 | Package_DIP:DIP-8_W7.62mm_LongPads | U1 |
| 1 | SJ-3523-SMT-TR | Appreciate:SJ3523SMTTR | J1 |
The 11 most common of 12 parts.
It measures 32.5 × 25.4 mm and has 2 copper layers, 1.6 mm thick.
12 parts, built around the SJ-3523-SMT-TR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the 2468shrm/msgeq7 repository on GitHub, at the commit this page was made from: the board is breakout/breakout.kicad_pcb and its schematic breakout/breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask 2468shrm before reusing the design.

zueblin/Polaron
A DIY drum machine for the teensy microcontroller (hardware / software)



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