# Hothouse Desktop Chain DSP ## Description Three-stage stereo DSP effects processor using three Electrosmith Daisy Seed modules, shared 9V-to-5V power, panel controls, USB MIDI, and internal stereo audio chaining. ## Project Details - **Owner:** funkyboss - **Created:** 5/16/2026 - **Last Updated:** 5/17/2026 - **Visibility:** Public - **Connectivity:** Stereo unbalanced 1/4 inch TS audio I/O, internal stereo audio chain, three USB Micro-B ports for MIDI/DFU. - **Implementation Details:** Architecture calls for three identical 90 mm x 70 mm unit PCBs plus one 90 mm x 40 mm power/interconnect PCB in a Hammond 1455Q2201-style enclosure. - **Operating Voltage:** 9V - **Power Requirements:** 9 V DC center-positive barrel input, 500 mA minimum supply; shared 5 V regulated bus for three Daisy Seed modules. - **Domain:** Audio / Desktop DSP Effects Processor - **Human Interface:** 18 potentiometers, 9 SPDT toggle switches, 3 status LEDs, BOOT access holes. ## Key Components ### D1 — [1N5817RLG](https://www.flux.ai/lcsc/1n5817rlg~el8y.md) - JLCPCB Part Class: Extended Part - Role: Reverse Polarity Protection - LCSC Part Number: C232461 - Datasheet URL: https://lcsc.com/product-detail/Others_ON-Semicon_1N5817RLG_ON-Semicon-ON-1N5817RLG_C232461.html - Product Info Url: https://lcsc.com/product-detail/Others_ON-Semicon_1N5817RLG_ON-Semicon-ON-1N5817RLG_C232461.html - Manufacturer Name: onsemi(安森美) - Role Details: Series Schottky diode before buck regulator input - Manufacturer Part Number: 1N5817RLG - Part Type: Schottky Barrier Diodes (SBD) - Package or Case Code: DO-15_BD3.1-L6.7-P10.70-D0.9-RD **Pins:** - A [pin 2] - C [pin 1] ### F1 — [MF-MSMF050-2](https://www.flux.ai/adrian95/mf-msmf050-2~8fg.md) - Manufacturer Name: Bourns Inc. - Part Type: Fuse - Role Details: 500mA hold PTC sized for ~294mA 9V input current at 85% buck efficiency; protects 9V input path - Datasheet URL: https://www.bourns.com/docs/product-datasheets/mf-msmf.pdf - Manufacturer Part Number: MF-MSMF050-2 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [PJ-037A](https://www.flux.ai/vasy_skral/pj-037a~6cq.md) - Role: Power Input - Part Type: Connector - Manufacturer Part Number: PJ-037A - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/pj-037a.pdf - Role Details: 2.1mm ID / 5.5mm OD barrel jack; 9V center-positive input **Pins:** - Center pin [pin 1] - Terminal [pin 2] ### J10 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Symbol Style: parametric-v1 - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America - Role: Audio Connector - Role Details: Unit 2 OUT R: signal plus ground **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J11 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Manufacturer Name: JST Sales America - Role Details: Unit 3 IN L: signal plus ground - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 - Role: Audio Connector - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J12 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Part Type: Connector - Symbol Style: parametric-v1 - Role Details: Unit 3 IN R: signal plus ground - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America - Role: Audio Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J13 — [USB3070-30-A](https://www.flux.ai/jecstronic/usb3070-30-a~fj.md) - Part Type: Connector - Datasheet URL: https://gct.co/files/specs/usb3070-spec.pdf - Manufacturer Name: GCT - Manufacturer Part Number: USB3070-30-A - Role Details: USB 1 panel Micro-B receptacle routed to Unit 1 USB extension header - Role: USB Panel Jack - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - D- [pin 2] - D+ [pin 3] - GND [pin 5] - ID [pin 4] - MP1 [pin MP1] - MP2 [pin MP2] - VBUS [pin 1] ### J14 — [USB3070-30-A](https://www.flux.ai/jecstronic/usb3070-30-a~fj.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: USB Panel Jack - Role Details: USB 2 panel Micro-B receptacle routed to Unit 2 USB extension header - Datasheet URL: https://gct.co/files/specs/usb3070-spec.pdf - Part Type: Connector - Manufacturer Name: GCT - Manufacturer Part Number: USB3070-30-A **Pins:** - D- [pin 2] - D+ [pin 3] - GND [pin 5] - ID [pin 4] - MP1 [pin MP1] - MP2 [pin MP2] - VBUS [pin 1] ### J15 — [USB3070-30-A](https://www.flux.ai/jecstronic/usb3070-30-a~fj.md) - Manufacturer Name: GCT - Part Type: Connector - Datasheet URL: https://gct.co/files/specs/usb3070-spec.pdf - Manufacturer Part Number: USB3070-30-A - Role Details: USB 3 panel Micro-B receptacle routed to Unit 3 USB extension header - Role: USB Panel Jack - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - D- [pin 2] - D+ [pin 3] - GND [pin 5] - ID [pin 4] - MP1 [pin MP1] - MP2 [pin MP2] - VBUS [pin 1] ### J16 — [Pin Header 01x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x05-254mm-vertical~cas.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: USB Extension Header - Role Details: VBUS, D-, D+, ID, GND to Unit 1 USB extension cable **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J17 — [Pin Header 01x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x05-254mm-vertical~cas.md) - Role Details: VBUS, D-, D+, ID, GND to Unit 2 USB extension cable - Role: USB Extension Header - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J18 — [Pin Header 01x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x05-254mm-vertical~cas.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: USB Extension Header - Role Details: VBUS, D-, D+, ID, GND to Unit 3 USB extension cable **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J2 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Part Type: Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Symbol Style: parametric-v1 - Role: Power Output Connector - Role Details: JST-PH 2-pin 5V/GND feed to Unit 1 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J3 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Symbol Style: parametric-v1 - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Role Details: JST-PH 2-pin 5V/GND feed to Unit 2 - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Role: Power Output Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J4 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Role Details: JST-PH 2-pin 5V/GND feed to Unit 3 - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 - Role: Power Output Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J5 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Role Details: Unit 1 OUT L: signal plus ground - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Role: Audio Connector - Part Type: Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Symbol Style: parametric-v1 **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J6 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Role Details: Unit 1 OUT R: signal plus ground - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role: Audio Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Symbol Style: parametric-v1 **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J7 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Symbol Style: parametric-v1 - Role Details: Unit 2 IN L: signal plus ground - Role: Audio Connector - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J8 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Role: Audio Connector - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Role Details: Unit 2 IN R: signal plus ground - Symbol Style: parametric-v1 **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J9 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Role Details: Unit 2 OUT L: signal plus ground - Manufacturer Name: JST Sales America - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Role: Audio Connector - Symbol Style: parametric-v1 **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### U1 — [AP63205WU-7](https://www.flux.ai/lcsc/ap63205wu-7~0b16.md) - Role Details: AP63205 fixed 5V, 2A; Hothouse load is 450mA at 5V, ~294mA from 9V at 85% efficiency - Manufacturer Name: DIODES(美台) - Manufacturer Part Number: AP63205WU-7 - Frequency: 1100kHz - LCSC Part Number: C2071056 - Package or Case Code: TSOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Input Voltage: 3.8 ~ 32V - Role: Power Conversion - Part Type: DC-DC Converters - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP63200-AP63201-AP63203-AP63205.pdf - Output Current: 2A - Max Output Voltage: 5V - Operating Temperature: -40℃~+85℃@(TA) - JLCPCB Part Class: Extended Part **Pins:** - BST [pin 6] - EN [pin 2] - FB [pin 1] - GND [pin 4] - SW [pin 5] - VIN [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/funkyboss/hothouse-desktop-chain-dsp~xs](https://www.flux.ai/funkyboss/hothouse-desktop-chain-dsp~xs).* --- *Generated from [https://www.flux.ai/funkyboss/hothouse-desktop-chain-dsp~xs](https://www.flux.ai/funkyboss/hothouse-desktop-chain-dsp~xs)*