Digital PSU - 8V 3.3V
About the Digital PSU - 8V 3.3V PCB
Digital PSU - 8V 3.3V is an open source ESP32 PCB design by Gninnorg, published on GitHub. It is a 2-layer board measuring 54.4 × 85 mm, with 12 components from 11 distinct parts.
Its main chip is the ESP32 power, from the ESP32 family. Other key parts include the LM7808_TO220 and LD1117V33. By type, the board carries 4 connectors, 4 capacitors and 2 ICs.
Main components on the Digital PSU - 8V 3.3V
Digital PSU - 8V 3.3V bill of materials (BOM)
12 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM7808_TO220 | TO-220-3_Vertical | U2 |
| 1 | LD1117V33 | TO-220-3_Vertical | U3 |
| 1 | ESP32 power | TBP01R1-508-02BK | J6 |
| 1 | Opt. 3V3 power | TBP01R1-508-02BK | J7 |
| 1 | DC in | TBP01R1-508-02BK | J8 |
| 1 | Relay power | TBP01R1-508-02BK | J9 |
| 2 | Heatsink | Heatsink_Fischer_SK145-STS_29x12mm_2xDrill2.5mm | HS6, HS7 |
| 1 | 330NF 330nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5 |
| 1 | 100NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 10NF 10nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 10uF 16V | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8 |
Digital PSU - 8V 3.3V design files
The KiCad project lives in the Gninnorg/ThePreamp repository on GitHub; these links point at the commit this page was built from.
Digital PSU - 8V 3.3V: common questions
What microcontroller does the Digital PSU - 8V 3.3V use?
The Digital PSU - 8V 3.3V is built around the ESP32 power, from the ESP32 family.
How big is the Digital PSU - 8V 3.3V PCB?
The Digital PSU - 8V 3.3V measures 54.4 × 85 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Digital PSU - 8V 3.3V?
12 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Digital PSU - 8V 3.3V design files?
From the Gninnorg/ThePreamp repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Digital PSU - 8V 3.3V design in my own project?
The repository has no license, so all rights stay with Gninnorg. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Digital PSU - 8V 3.3V without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
More boards in ThePreamp
Daughter-Board-Muses-Op-Amp
140.3 × 65 mm38 parts2LNo license0
ThePreamp-Analogue
285 × 65 mm37 parts2LNo license0
Digital PSU - LAdapter
128 × 85 mm35 parts2LNo license0
ESP32ThePreamp-Controller
336 × 44.5 mm25 parts2LNo license0
ESP32Chassis
285 × 65 mm23 parts2LNo license0
Buffer-Opamp
84 × 108 mm21 parts2LNo license0
Volume
47.7 × 93.5 mm17 parts2LNo license0
Digital PSU - Transformer
82.2 × 85 mm7 parts2LNo license0
Template-Daughter board
140.3 × 65 mm3 parts2LNo license0
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k