- ESP-32-S3-WROOM-1
- ICM-42670-P IMU sensor
- BQ24072RGT Battery Charger
- B2B-XH-A_LF__SN_ Connector
- TPS63060 Buck Boost Converter
- CH340C USB-UART bridge
- USB-C connection
- 1x20 x2 Connector pins (GPIO/GND/5V/3V3)
See full TrlBoard-schematic.
The schematic:
Front:
Back:
The board is manufactured through JLCPCB's PCBA though not complete as the ESP32-S3-WROOM-1 and header pins are going to be hand-soldered.
For the breakdown of the board's individual components, check check Components.
For the breakdown of the PCBA components, check Components.
For the breakdown of the entire cost check (PCBA + ESP32 + Connector pins + resistor) check BOM or look below.
| Designator | Footprint | Quantity | Qty/board | Value | Link | Cost | Running Cost |
|---|---|---|---|---|---|---|---|
| PCBA | 2 | JLCPCB | 37.99 | 37.99 | |||
| U2 | ESP32-S3-WROOM-1 | 2 | 1 | ESP32-S3-WROOM-1 | AliExpress | 11.58 | 49.57 |
| J2, J4 | PinHeader_1x22_P2.54mm_Vertical | 4 | 2 | Conn_01x12 | AliExpress | 0.9 | 50.47 |
| R1 | 402 | 2 | 1 | 680k | AliExpress | 0.86 | 51.33 |
| MT1 | ICM-42670-P | 2 | 1 | ICM-42670-P | AliExpress | 3.38 | 54.71 |
| AliExpress Tax + Shipping Fee | 2.4 | 57.11 | |||||
| Total Cost | 57.11 |
Note: I didn't find any 1x22 pin connectors so why not just purchase 1x30pin and then cut off the excess?
TRL-Board is a flexible devboard aimed to power personal robotic prototypes, with ideas such as:
- Quadrupped Bot
- Line-follower
- Robotic Arm Mirrored control
Ideas to follow!