2 layers47 × 29 mm
4 layers84.5 × 129.5 mm
BitaxeHex
bitaxeorg/ultraHex190multi-ASIC Bitcoin miner
- Size
- 84.5 × 129.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 369
- Nets
- 257
- Pads
- 1,105
- Tracks, vias
- 2,703, 543
- Pours
- 46
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Oct 2023
- Updated
- 3 Apr 2025
Overview
BitaxeHex is an open-source printed circuit board by bitaxeorg, from the bitaxeorg/ultraHex repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 4-layer board of 84.5 × 129.5 mm with 369 parts on 257 nets, routed with 2,703 tracks and 543 vias.
It is built around the ESP32-S3-WROOM-1-N8, TLV3544ID and TMP1075D, with the LMR54410DBV, TPS546D24ARVFR and RT9080-33GJ5 among its other parts. Its parts include 158 capacitors, 71 resistors, 26 ICs, 8 connectors and 2 switches. It belongs with the ESP32 boards of this library.
Main components
8
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TLV3544ID
SOIC-14-2.75V~-1.25V、1.25V~2.75V -40℃~+125℃ 100mA 150V/us 1pA 2.5V~5.5V 200MHz 2mV 3pA 4 4.5uV/℃ 5.2mA 7.5nV/√Hz@1MHz 80dB Built-in compensation、ESD protection Rail-to-Rail Input, Rail-to-Rail Output SOIC-14 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
TMP1075D
SOIC-8-55℃~+125℃ 1.7V~5.5V 12bit 3.5uA 7ms Factory temperature calibration、Temperature threshold monitoring I2C、SMBus ±1℃ SOIC-8 Temperature Sensors ROHSTexas InstrumentsTemperature Sensors
LMR54410DBV
SOT-23-6-40℃~+125℃ 1 1.1MHz 120uA 1A 4V~36V 800mV~28V Adjustable Buck Buck Built-in Yes SOT-23-6 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TPS546D24ARVFR
LQFN-40-EP(5x7)-40℃~+150℃@(TJ) 1 2.95V~16V 225kHz~1.5MHz 250mV~6V 40A Adjustable Buck Buck Built-in Yes LQFN-40-EP(5x7) DC-DC Converters ROHSTexas InstrumentsAC-DC Controllers & Regulators
RT9080-33GJ5
TSOT-23-5-40℃~+125℃@(Tj) 1 2uA 3.3V 360mV@(600mA) 42uVrms 5.5V 600mA 75dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive TSOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSRichtek TechVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SN74AVC4T774PW
TSSOP-16-40℃~+85℃ 1 1.2V~3.6V 1.2V~3.6V 380Mbps 4 Bidirectional Level translator Power-off protection、Output enable high-impedance Tri-State TSSOP-16 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
TC2030-IDC-NL
UncategorisedTag Connect
README
hex-display/readme.mdBitaxeHex display adapter board
This adapater board provides a connection from the BitaxeHex to a 172x320 SPI interface ST7789 Drive OLED graphic display. This is intended for use on the bitaxeHex. Currently, the firmware to drive it has not been developed, so this is provided in order to facilitate that effort.
The cable to connect it is constructed with a pair of JST-GH 12-pin housings, and cables that run straight through.
Parts
To construct the cable:
- qty 12 of the pre-crimped cables
- qty 2 of the JST-GH housings
Insert the cables into the housings with the locking pin facing the same direction (both towards you)
Parts
369| Qty | Value | Footprint | References |
|---|---|---|---|
| 91 | 1uF | Capacitor_SMD:C_0402_1005Metric | C11, C100, C102, C103, C104, C105, C107, C108, C109, C110, C112, C113, C114, C115, C116, C117 +75 |
| 52 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP20, TP21, TP22, TP23, TP24, TP25, TP26 +36 |
| 22 | 10k | Resistor_SMD:R_0402_1005Metric | R6, R17, R18, R26, R27, R28, R35, R36, R43, R44, R48, R49, R52, R53, R57, R58 +6 |
| 19 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C12, C33, C50, C51, C60, C62, C73, C82, C106, C111, C121, C122, C130, C132, C142, C147 +3 |
| 18 | 1k | Resistor_SMD:R_0402_1005Metric | R34, R37, R42, R45, R47, R50, R51, R54, R55, R56, R59, R60, R67, R69, R72, R73 +2 |
| 9 | HeatsinkMountingHole | bitaxe:3.1mm_mounting | H7, H8, H9, H10, H11, H12, H13, H14, H15 |
| 9 | TestPoint | bitaxe:TestPoint_Pad_D1.0mm_highlight | TP35, TP36, TP45, TP46, TP54, TP55, TP70, TP71, TP72 |
| 8 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4, FID5, FID6, FID7, FID8 |
| 7 | 311-3342-1-ND | Capacitor_SMD:C_0402_1005Metric | C34, C35, C38, C39, C40, C43, C44 |
| 6 | 0.01uF | Capacitor_SMD:C_0402_1005Metric | C152, C153, C160, C161, C162, C163 |
| 6 | MountingHole | MountingHole:MountingHole_3mm_Pad_Via | H1, H2, H3, H4, H5, H6 |
| 6 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP59, TP60, TP61, TP62, TP63, TP64 |
| 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C3, C18, C20, C31 |
| 4 | 22.1k | Resistor_SMD:R_0402_1005Metric | R12, R20, R30, R32 |
| 4 | 22uF | Capacitor_SMD:C_1206_3216Metric | C4, C7, C8, C10 |
| 4 | 5.1k | Resistor_SMD:R_0402_1005Metric | R22, R23, R78, R79 |
| 4 | BM1366_mode1 | bitaxe:BM1366 | U12, U13, U22, U25 |
| 3 | + | TestPoint:TestPoint_Pad_D1.5mm | TP18, TP67, TP69 |
| 3 | - | TestPoint:TestPoint_Pad_D1.5mm | TP19, TP65, TP68 |
| 3 | 0R | Resistor_SMD:R_0402_1005Metric | R1, R2, R3 |
| 3 | 25MHz | bitaxe:O 25,0-JO32-B-1V3-1-T1-LF | U14, U19, U26 |
| 3 | 2k | Resistor_SMD:R_0402_1005Metric | R33, R46, R68 |
| 3 | 330uF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C68, C101, C140 |
| 3 | 47uF | Capacitor_SMD:C_1210_3225Metric | C27, C28, C29 |
| 3 | 7.87k | Resistor_SMD:R_0402_1005Metric | R19, R29, R31 |
| 3 | SGM2036-0v8 | Package_TO_SOT_SMD:TSOT-23-5 | U10, U17, U23 |
| 3 | SGM2036-1v8 | Package_TO_SOT_SMD:TSOT-23-5 | U11, U16, U24 |
| 2 | 1.37K | Resistor_SMD:R_0402_1005Metric | R9, R16 |
| 2 | 100uF | Capacitor_SMD:C_1210_3225Metric | C30, C151 |
| 2 | 17.8K | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric | C14, C15 |
| 2 | 2.2nF | Capacitor_SMD:C_0402_1005Metric | C16, C26 |
| 2 | 220uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C41, C42 |
| 2 | 47uF | Capacitor_SMD:C_1206_3216Metric | C9, C154 |
| 2 | 5.6k | Resistor_SMD:R_0402_1005Metric | R24, R25 |
| 2 | 6.8pF | Capacitor_SMD:C_0402_1005Metric | C36, C37 |
| 2 | BM1366_mode0 | bitaxe:BM1366 | U18, U20 |
| 2 | Conn_01x04 | bitaxe:470531000 | J8, J9 |
| 2 | SWITCH-SPST | bitaxe:TL3340-switch | SW1, SW2 |
| 2 | TLV3544 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U15, U21 |
| 2 | TMP1075 | bitaxe:HVSSOP-8_3x3mm_P0.65mm | U7, U8 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C13 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C23 |
| 1 | 100pF | Capacitor_SMD:C_0402_1005Metric | C24 |
| 1 | 10R | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 115k | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 12.7K | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 1R | Resistor_SMD:R_1206_3216Metric | R14 |
| 1 | 1nF | Capacitor_SMD:C_0805_2012Metric | C22 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R21 |
| 1 | 26.1K | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 31.6K | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 32.768kHz | bitaxe:SC32S-7PF20PPM | Y1 |
| 1 | 4.7nF | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C17 |
| 1 | 49.9R | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 680nH | bitaxe:L_Coilcraft_XAL1010-XXX | L2 |
| 1 | 8.2 uH | bitaxe:74438357082 | L1 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J3 |
| 1 | EMC2302 | Package_SO:MSOP-10_3x3mm_P0.5mm | U9 |
| 1 | ESP32-S3-WROOM-1 | bitaxe:ESP32-S3-WROOM-1U | U6 |
| 1 | G*** | kibuzzard-65356D4E | kibuzzard-65356D4E |
| 1 | G*** | kibuzzard-65356D5C | kibuzzard-65356D5C |
| 1 | Heatsink | bitaxe:hex-heatsink | HS1 |
| 1 | LMR54410 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MIC5504 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U4 |
| 1 | RT9080-33GJ5 | bitaxe:RT9080-33GJ5 | U2 |
| 1 | SN74AVC4T774 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U5 |
| 1 | TC2030-IDC | bitaxe:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J4 |
| 1 | TPS546D24ARVFR | bitaxe:LQFN40-CLIP | U3 |
| 1 | TestPoint | bitaxe:TestPoint_Pad_D0.8mm | TP1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J7 |
| 1 | XT30 | bitaxe:XT30PW-M | J1 |
Questions
How big is the BitaxeHex PCB?
It measures 84.5 × 129.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the BitaxeHex use?
369 parts, built around the ESP32-S3-WROOM-1-N8, TLV3544ID, TMP1075D and LMR54410DBV. 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.
Where can I download the BitaxeHex KiCad files?
From the bitaxeorg/ultraHex repository on GitHub, at the commit this page was made from: the board is bitaxeHex.kicad_pcb and its schematic bitaxeHex.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BitaxeHex design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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