AMBIENT
About the AMBIENT PCB
AMBIENT is an open source PCB design by Sancte3D, published on GitHub. It is a board, with 48 components from 48 distinct parts.
Other key parts include the MCP23017-E/SS and PCA9685PW,118. By type, the board carries 15 LEDs, 10 switches, 4 resistors, 2 ICs and 2 capacitors.
From the project
A field-recorder-style ambient instrument. Hardware-software product in active development — generative audio engine running on STM32H7, controlled by an OP-1-inspired 320×170 IPS display + four endless encoders.
A field-recorder-style ambient instrument. Hardware-software product in active development — generative audio engine running on STM32H7, controlled by an OP-1-inspired 320×170 IPS display + four endless encoders.
Current state: prototype. Audio engine runs on Pico 2 host tests and a display bench, hardware migration to STM32H743 is in progress, no PCB layout yet — not orderable.
Main components on the AMBIENT
AMBIENT bill of materials (BOM)
48 components, 48 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP23017-E/SS MCP23017-E/SS (I/O-Expander) | SSOP-28_5.3x10.2mm_P0.65mm | U2 |
| 1 | PCA9685PW,118 PCA9685PW (16-Ch I²C PWM LED-Driver) | TSSOP-28_4.4x9.7mm_P0.65mm | U6 |
| 1 | 0603WAF3900T5E 390R 0603 (SHIFT-Modifier (gelb) series) | R_0603_1608Metric | R_LED6 |
| 1 | 0603WAF3900T5E 390R 0603 (HOLD-Mode (gruen) series) | R_0603_1608Metric | R_LED7 |
| 1 | 0603WAF3900T5E 390R 0603 (DRONE-Mode (weiss) series) | R_0603_1608Metric | R_LED8 |
| 1 | 0603WAF3900T5E 390R 0603 (GENERATE-Mode (weiss) series) | R_0603_1608Metric | R_LED9 |
| 1 | 0603WAF3900T5E 390R 0603 (CLEAR-Confirm (weiss) series) | R_0603_1608Metric | R_LED10 |
| 1 | 0603WAF3900T5E 390R 0603 (CELL1 Hold@Shift (gruen) series) | R_0603_1608Metric | R_LED11G |
| 1 | 0603WAF3900T5E 390R 0603 (CELL1 Hold@Basis (gelb) series) | R_0603_1608Metric | R_LED11Y |
| 1 | 0603WAF3900T5E 390R 0603 (CELL2 Hold@Shift (gruen) series) | R_0603_1608Metric | R_LED12G |
| 1 | 0603WAF3900T5E 390R 0603 (CELL2 Hold@Basis (gelb) series) | R_0603_1608Metric | R_LED12Y |
| 1 | 0603WAF3900T5E 390R 0603 (CELL3 Hold@Shift (gruen) series) | R_0603_1608Metric | R_LED13G |
| 1 | 0603WAF3900T5E 390R 0603 (CELL3 Hold@Basis (gelb) series) | R_0603_1608Metric | R_LED13Y |
| 1 | 0603WAF3900T5E 390R 0603 (CELL4 Hold@Shift (gruen) series) | R_0603_1608Metric | R_LED14G |
| 1 | 0603WAF3900T5E 390R 0603 (CELL4 Hold@Basis (gelb) series) | R_0603_1608Metric | R_LED14Y |
| 1 | 0603WAF3900T5E 390R 0603 (CELL5 Hold@Shift (gruen) series) | R_0603_1608Metric | R_LED15G |
| 1 | 0603WAF3900T5E 390R 0603 (CELL5 Hold@Basis (gelb) series) | R_0603_1608Metric | R_LED15Y |
| 1 | CPG135001D01 (Kailh Choc V1, red/linear) Cell 1 digital trigger (Kailh Choc V1 CPG1350, direct-solder THT, real keyswitch feel, r18.75) Kailh (Dongguan Kaihua Electronics) | SW_KailhChoc_CPG1350_THT_2P | SW1 |
| 1 | CPG135001D01 (Kailh Choc V1, red/linear) Cell 2 digital trigger (Kailh Choc V1 CPG1350, direct-solder THT, real keyswitch feel, r18.75) Kailh (Dongguan Kaihua Electronics) | SW_KailhChoc_CPG1350_THT_2P | SW2 |
| 1 | CPG135001D01 (Kailh Choc V1, red/linear) Cell 3 digital trigger (Kailh Choc V1 CPG1350, direct-solder THT, real keyswitch feel, r18.75) Kailh (Dongguan Kaihua Electronics) | SW_KailhChoc_CPG1350_THT_2P | SW3 |
Show 28 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CPG135001D01 (Kailh Choc V1, red/linear) Cell 4 digital trigger (Kailh Choc V1 CPG1350, direct-solder THT, real keyswitch feel, r18.75) Kailh (Dongguan Kaihua Electronics) | SW_KailhChoc_CPG1350_THT_2P | SW4 |
| 1 | CPG135001D01 (Kailh Choc V1, red/linear) Cell 5 digital trigger (Kailh Choc V1 CPG1350, direct-solder THT, real keyswitch feel, r18.75) Kailh (Dongguan Kaihua Electronics) | SW_KailhChoc_CPG1350_THT_2P | SW5 |
| 1 | HX B3F-4055-Y Modifier SHIFT (HX B3F-4055 THT-Tactile, square head for caps, r18.71) HX | SW_TC1212-7.3_THT_4P | SW6 |
| 1 | HX B3F-4055-Y Modifier HOLD (HX B3F-4055 THT-Tactile, square head for caps, r18.71) HX | SW_TC1212-7.3_THT_4P | SW7 |
| 1 | HX B3F-4055-Y Modifier DRONE (HX B3F-4055 THT-Tactile, square head for caps, r18.71) HX | SW_TC1212-7.3_THT_4P | SW8 |
| 1 | HX B3F-4055-Y Modifier GENERATE (HX B3F-4055 THT-Tactile, square head for caps, r18.71) HX | SW_TC1212-7.3_THT_4P | SW9 |
| 1 | HX B3F-4055-Y Modifier CLEAR (HX B3F-4055 THT-Tactile, square head for caps, r18.71) HX | SW_TC1212-7.3_THT_4P | SW10 |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (SHIFT-Modifier (gelb)) | LED_0603_1608Metric | LED6 |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (HOLD-Mode (gruen)) | LED_0603_1608Metric | LED7 |
| 1 | XL-1608UWC-04 (warm-white 0603) SMD 0603 indicator (DRONE-Mode (weiss)) | LED_0603_1608Metric | LED8 |
| 1 | XL-1608UWC-04 (warm-white 0603) SMD 0603 indicator (GENERATE-Mode (weiss)) | LED_0603_1608Metric | LED9 |
| 1 | XL-1608UWC-04 (warm-white 0603) SMD 0603 indicator (CLEAR-Confirm (weiss)) | LED_0603_1608Metric | LED10 |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (CELL1 Hold@Shift (gruen)) | LED_0603_1608Metric | LED11G |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (CELL1 Hold@Basis (gelb)) | LED_0603_1608Metric | LED11Y |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (CELL2 Hold@Shift (gruen)) | LED_0603_1608Metric | LED12G |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (CELL2 Hold@Basis (gelb)) | LED_0603_1608Metric | LED12Y |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (CELL3 Hold@Shift (gruen)) | LED_0603_1608Metric | LED13G |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (CELL3 Hold@Basis (gelb)) | LED_0603_1608Metric | LED13Y |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (CELL4 Hold@Shift (gruen)) | LED_0603_1608Metric | LED14G |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (CELL4 Hold@Basis (gelb)) | LED_0603_1608Metric | LED14Y |
| 1 | KT-0603G (Hubei KENTO, pure green 525nm 0603, Vf 3.1V) SMD 0603 indicator (CELL5 Hold@Shift (gruen)) | LED_0603_1608Metric | LED15G |
| 1 | KT-0603Y (Hubei KENTO, yellow 0603, Vf 2.4V) SMD 0603 indicator (CELL5 Hold@Basis (gelb)) | LED_0603_1608Metric | LED15Y |
| 1 | CC0603KRX7R9BB104 100nF X7R 0603 (VDD HF) | C_0603_1608Metric | C5 |
| 1 | 0603B103K500NT 10nF X7R 0603 (VDD HF²) | C_0603_1608Metric | C5b |
| 1 | 0603WAF4701T5E 4.7k 0603 (SDA pull-up) | R_0603_1608Metric | R4 |
| 1 | 0603WAF4701T5E 4.7k 0603 (SCL pull-up) | R_0603_1608Metric | R5 |
| 1 | 0603WAF1002T5E 10k 0603 (RESET pull-up) | R_0603_1608Metric | R6 |
| 1 | 0603WAF1002T5E 10k 0603 (INTA pull-up, v0.6 H3) | R_0603_1608Metric | R20 |
AMBIENT design files
The KiCad project lives in the Sancte3D/AMBIENT repository on GitHub; these links point at the commit this page was built from.
AMBIENT: common questions
How many components are on the AMBIENT?
48 components, from 48 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 AMBIENT design files?
From the Sancte3D/AMBIENT repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.
Can I use the AMBIENT design in my own project?
The repository has no license, so all rights stay with Sancte3D. Use it as a reference, and ask the author before reusing the design.