# ATLAS X Control Board \- Revision A

## Description

Low\-voltage ESP32\-S3\-DevKitC\-1 carrier and control board for ATLAS X, with OLED, buttons, DS18B20 input, indicators, expansion, and no fan circuitry in Revision A\.

## Project Details

- **Owner:** raffalele
- **Created:** 8/1/2026
- **Last Updated:** 8/2/2026
- **Visibility:** Public

## Key Components

### D1 — [151034RS03000](https://flux.ai/adrian95/151034rs03000~xd.md)

- Datasheet URL: https://www\.we\-online\.com/components/products/datasheet/151034RS03000\.pdf
- Role Details: Red POWER indicator: 3V3 through R5 to anode, cathode to GND; always on when 3V3 is present\.
- Manufacturer Name: Würth Elektronik
- Manufacturer Part Number: 151034RS03000
- Role: Human Interface
- Part Type: LED
- Functional Group: Power/test points
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- A [pin 2]
- K [pin 1]

### D2 — [151031VS06000](https://flux.ai/adrian95/151031vs06000~t3a.md)

- Datasheet URL: https://www\.we\-online\.com/components/products/datasheet/151031VS06000\.pdf
- Role: Human Interface
- Manufacturer Part Number: 151031VS06000
- Role Details: Green STATUS indicator: GPIO15 high drives current through R6 and LED to GND; active high\.
- Functional Group: LEDs
- Manufacturer Name: Würth Elektronik
- Part Type: LED
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- A [pin 2]
- K [pin 1]

### J\_HP\_PWR\_SW — [B2B\-XH\-A\(LF\)\(SN\)](https://flux.ai/adrian95/b2b-xh-alfsn~5xx.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: HP Power Button Isolated Interface
- Role: Connectivity
- Manufacturer Name: JST Sales America Inc\.
- Datasheet URL: https://www\.jst\-mfg\.com/product/pdf/eng/eXH\.pdf
- Manufacturer Part Number: B2B\-XH\-A\(LF\)\(SN\)
- Symbol Style: parametric\-v1
- Role Details: Polarity\-free isolated HP power\-switch output only; pin 1 HP\_PWR\_SW\_A, pin 2 HP\_PWR\_SW\_B\.
- Part Type: Connector

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J1 — [PPPC221LFBN\-RC](https://flux.ai/silicon-yard/pppc221lfbn-rc.md)

- Connector Type: Female Socket
- Connector Pitch: 2\.54mm
- Functional Group: DevKit/header carrier
- Role: Connectivity
- Symbol Style: parametric\-v1
- Part Type: Connectors
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/f38dd57391b41aa9ba2b3e70258b87faaafe2f9e40d72e5462fcbbc7176ec578\.pdf
- Manufacturer Part Number: PPPC221LFBN\-RC
- Role Details: Official ESP32\-S3\-DevKitC\-1 v1\.1 J1 header mapping; one of two removable 1x22 sockets\.
- Connector Positions: 22
- Manufacturer Name: Sullins

**Pins:**
- 1 [pin 1]
- 10 [pin 10]
- 11 [pin 11]
- 12 [pin 12]
- 13 [pin 13]
- 14 [pin 14]
- 15 [pin 15]
- 16 [pin 16]
- 17 [pin 17]
- 18 [pin 18]
- 19 [pin 19]
- 2 [pin 2]
- 20 [pin 20]
- 21 [pin 21]
- 22 [pin 22]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
- 9 [pin 9]

### J3 — [PPPC221LFBN\-RC](https://flux.ai/silicon-yard/pppc221lfbn-rc.md)

- Role Details: Official ESP32\-S3\-DevKitC\-1 v1\.1 J3 header mapping; one of two removable 1x22 sockets\.
- Connector Pitch: 2\.54mm
- Functional Group: DevKit/header carrier
- Symbol Style: parametric\-v1
- Role: Connectivity
- Connector Positions: 22
- Part Type: Connectors
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/f38dd57391b41aa9ba2b3e70258b87faaafe2f9e40d72e5462fcbbc7176ec578\.pdf
- Manufacturer Part Number: PPPC221LFBN\-RC
- Manufacturer Name: Sullins
- Connector Type: Female Socket

**Pins:**
- 1 [pin 1]
- 10 [pin 10]
- 11 [pin 11]
- 12 [pin 12]
- 13 [pin 13]
- 14 [pin 14]
- 15 [pin 15]
- 16 [pin 16]
- 17 [pin 17]
- 18 [pin 18]
- 19 [pin 19]
- 2 [pin 2]
- 20 [pin 20]
- 21 [pin 21]
- 22 [pin 22]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
- 9 [pin 9]

### J4 — [Pin Socket 01x04 2\.54mm Vertical](https://flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Connectivity
- Functional Group: OLED/I2C
- Role Details: Soldered Electronics OLED 333100 hardware V1\.3, 3\.3 V, address 0x3C; pin order 1 GND, 2 VCC, 3 SDA, 4 SCL\.
- Part Type: Connector

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]
- Pin\_4 [pin 4]

### J5 — [Pin Socket 01x04 2\.54mm Vertical](https://flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Connectivity
- Functional Group: OLED/I2C
- Role Details: I2C expansion pin order 1 GND, 2 3V3, 3 SDA, 4 SCL\.
- Part Type: Connector

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]
- Pin\_4 [pin 4]

### J6 — [Pin Socket 01x08 2\.54mm Vertical](https://flux.ai/adrian95/pin-socket-01x08-254mm-vertical~cz1.md)

- Role Details: Expansion pin order GND, 3V3, GPIO10, GPIO11, GPIO12, GPIO13, GPIO17 future PWM, GPIO18 future tach\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Functional Group: Expansion
- Role: Connectivity

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]
- Pin\_4 [pin 4]
- Pin\_5 [pin 5]
- Pin\_6 [pin 6]
- Pin\_7 [pin 7]
- Pin\_8 [pin 8]

### J7 — [M20\-9990346](https://flux.ai/adrian95/m20-9990346~5ga.md)

- Connector Gender: Male
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Connectivity
- Manufacturer Name: Harwin
- Connector Type: Headers and Wire Housings
- Manufacturer Part Number: M20\-9990346
- Connector Rows: 1
- Functional Group: DS18B20
- Part Type: Connector
- Datasheet URL: https://content\.harwin\.com/m/0df15f6e0f9f48e2/original/DRG\-00479\-Technical\-Drawing\-Datasheet\-M20\-999\-pdf\.pdf
- Connector Positions: 3
- Role Details: Externally powered DS18B20 connector pin order 1 GND, 2 3V3, 3 DATA\.
- Connector Pitch: 2\.54mm

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### K1 — [AQY212EH](https://flux.ai/lcsc/aqy212eh~76k9.md)

- Part Type: Solid State Relays \- MOS Output \(PhotoMOS\)
- Role Details: AQY212EH DIP\-4 through\-hole PhotoMOS; pin 1 LED anode, pin 2 LED cathode, pins 3 and 4 polarity\-free 1 Form A output, verified against Panasonic GE DIP4 family documentation\.
- JLCPCB Part Class: Extended Part
- Functional Group: HP Power Button Isolated Interface
- Manufacturer Name: PANASONIC\(松下\)
- Manufacturer Part Number: AQY212EH
- Role: Isolation
- Package or Case Code: DIP\-4\_L6\.4\-W4\.8\-P2\.54\-LS7\.6\-BL
- LCSC Part Number: C2894775
- Datasheet URL: https://industry\.panasonic\.com/global/en/products/control/relay/photomos/number/aqy212eh

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### SW1 — [3\-1825910\-5](https://flux.ai/vasy_skral/3-1825910-5~1i0.md)

- Manufacturer Name: TE Connectivity ALCOSWITCH Switches
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Human Interface
- Role Details: ACTION\_1 active\-low momentary switch to GND with 10k/1uF hardware debounce\.
- Manufacturer Part Number: 3\-1825910\-5
- Functional Group: Buttons
- Datasheet URL: https://www\.te\.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1825910&DocType=Customer\+Drawing&DocLang=English
- Part Type: Switch

**Pins:**
- 1\-1 [pin 1\-1]
- 1\-2 [pin 1\-2]
- 2\-1 [pin 2\-1]
- 2\-2 [pin 2\-2]

### SW2 — [3\-1825910\-5](https://flux.ai/vasy_skral/3-1825910-5~1i0.md)

- Manufacturer Name: TE Connectivity ALCOSWITCH Switches
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: Buttons
- Role Details: ACTION\_2 active\-low momentary switch to GND with 10k/1uF hardware debounce\.
- Role: Human Interface
- Manufacturer Part Number: 3\-1825910\-5
- Datasheet URL: https://www\.te\.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1825910&DocType=Customer\+Drawing&DocLang=English
- Part Type: Switch

**Pins:**
- 1\-1 [pin 1\-1]
- 1\-2 [pin 1\-2]
- 2\-1 [pin 2\-1]
- 2\-2 [pin 2\-2]

### SW3 — [3\-1825910\-5](https://flux.ai/vasy_skral/3-1825910-5~1i0.md)

- Manufacturer Name: TE Connectivity ALCOSWITCH Switches
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: Buttons
- Role Details: ACTION\_3 active\-low momentary switch to GND with 10k/1uF hardware debounce\.
- Manufacturer Part Number: 3\-1825910\-5
- Role: Human Interface
- Datasheet URL: https://www\.te\.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1825910&DocType=Customer\+Drawing&DocLang=English
- Part Type: Switch

**Pins:**
- 1\-1 [pin 1\-1]
- 1\-2 [pin 1\-2]
- 2\-1 [pin 2\-1]
- 2\-2 [pin 2\-2]

### TP1 — [4952](https://flux.ai/cherepanyadima/4952~hh.md)

- Datasheet URL: https://www\.keyelco\.com/userAssets/file/K75p63\.pdf
- Functional Group: Power/test points
- Manufacturer Name: Keystone
- Part Type: Connector
- Manufacturer Part Number: 4952

**Pins:**
- \~ [pin TP]

### TP2 — [4952](https://flux.ai/cherepanyadima/4952~hh.md)

- Datasheet URL: https://www\.keyelco\.com/userAssets/file/K75p63\.pdf
- Manufacturer Name: Keystone
- Part Type: Connector
- Functional Group: Power/test points
- Manufacturer Part Number: 4952

**Pins:**
- \~ [pin TP]

### TP3 — [4952](https://flux.ai/cherepanyadima/4952~hh.md)

- Datasheet URL: https://www\.keyelco\.com/userAssets/file/K75p63\.pdf
- Functional Group: Power/test points
- Manufacturer Name: Keystone
- Part Type: Connector
- Manufacturer Part Number: 4952

**Pins:**
- \~ [pin TP]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/raffalele/atlas\-x\-control\-board\-revision\-a\~mv](https://flux.ai/raffalele/atlas-x-control-board-revision-a~mv).*

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*Generated from [https://flux\.ai/raffalele/atlas\-x\-control\-board\-revision\-a\~mv](https://flux.ai/raffalele/atlas-x-control-board-revision-a~mv)*