Valhalla-MOD-XVR OT
About the Valhalla-MOD-XVR OT PCB
Valhalla-MOD-XVR OT is an open source PCB design by csdexter, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 76.2 × 50.8 mm, with 51 components from 27 distinct parts.
Other key parts include the PC817, 74LS06 and 74LS07. By type, the board carries 21 resistors, 13 diodes, 6 ICs, 6 transistors and 5 connectors.
From the project
Version-controlled material related to the Valhalla project
This repository contains version-controlled material related to operation Valhalla. The documentation counterparts are currently stored in Google Drive.
Main components on the Valhalla-MOD-XVR OT
Valhalla-MOD-XVR OT bill of materials (BOM)
51 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | PC817 | DIP-4_W7.62mm | U1, U2, U5, U6 |
| 1 | 74LS06 | DIP-14_W7.62mm | U3 |
| 1 | 74LS07 | DIP-14_W7.62mm | U4 |
| 4 | BC558 | TO-92L | Q1, Q2, Q3, Q4 |
| 2 | BC548 | TO-92L | Q5, Q6 |
| 1 | BUS | PinSocket_2x10_P2.54mm_Vertical | J1 |
| 1 | GPIO | TerminalBlock_Phoenix_MPT-0,5-5-2.54_1x05_P2.54mm_Horizontal | J2 |
| 1 | OT+_Boiler | TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal | J3 |
| 1 | OT+_Thermostat | TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal | J4 |
| 1 | 24V_BOOST | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 3 | R | LED_D3.0mm_Horizontal_O3.81mm_Z6.0mm | D1, D10, D12 |
| 4 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D2, D3, D4, D5 |
| 1 | 4V7 | D_DO-35_SOD27_P7.62mm_Horizontal | D6 |
| 1 | 13V | D_DO-35_SOD27_P7.62mm_Horizontal | D7 |
| 1 | 4V3 | D_DO-35_SOD27_P7.62mm_Horizontal | D8 |
| 3 | R | LED_D3.0mm_Horizontal_O1.27mm_Z2.0mm | D9, D11, D13 |
| 6 | R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1, R7, R8, R9, R10, R16 |
| 1 | 220R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2 |
| 2 | 100R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R3, R12 |
| 3 | 330R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R4, R6, R21 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R5, R15, R20 |
| 1 | 33K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R11 |
| 1 | 39R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R13 |
| 1 | 20K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R14 |
| 1 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R17 |
| 1 | 4K7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R18 |
| 1 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R19 |
Valhalla-MOD-XVR OT design files
The KiCad project lives in the csdexter/valhalla repository on GitHub; these links point at the commit this page was built from.
Valhalla-MOD-XVR OT: common questions
How big is the Valhalla-MOD-XVR OT PCB?
The Valhalla-MOD-XVR OT measures 76.2 × 50.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Valhalla-MOD-XVR OT?
51 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Valhalla-MOD-XVR OT design files?
From the csdexter/valhalla repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Valhalla-MOD-XVR OT design in my own project?
Yes, under the terms of its GPL-3.0 license, which csdexter chose for the repository.
More boards in valhalla
Valhalla MOD XVR(4IO)
99.6 × 99.6 mm128 parts2LGPL-3.00
AVR/ArduinoUFH Process Computer - CPU
90.9 × 84.6 mm69 parts2LGPL-3.00- schematic only · 55 parts
Valhalla pv
55 parts2LGPL-3.00 
AVR/ArduinoValhalla UFH Sensor (SMT)
99.6 × 64.3 mm53 parts2LGPL-3.00
Valhalla-MOD-PSU
99.6 × 99.6 mm50 parts2LGPL-3.00
AVR/ArduinoValhalla-MOD-CPU ATMEGA
76.2 × 50.8 mm27 parts2LGPL-3.00
Valhalla-MOD-XVR RS485
76.2 × 50.8 mm16 parts2LGPL-3.00
Valhalla-MOD-XVR RS232
76.2 × 50.8 mm12 parts2LGPL-3.00
Valhalla-MOD-BPL SEP
76.2 × 50.8 mm3 parts2LGPL-3.00