This is a digital radio system using a microcontroller, a CC1101 Sub-GHz module and an LCD. The idea is to have a pocket-sized device that can be used independently to receive broadcasted messages, or as a "modem" for the 400MHz ham band.
source https://hackaday.io/project/11056-waffle-a-pocket-sized-digital-radio-system
| ID | Name | Designator | Footprint | Quantity | Mounted |
|---|---|---|---|---|---|
| 1 | 16MHz | Y2 | CRYSTAL_HC49-SD_SMD | 1 | Yes |
| 2 | 22pF | C10,C9,C1,C2 | C_0805_HANDSOLDERING | 4 | Yes |
| 3 | 10K | R1 | R_0805_HANDSOLDERING | 1 | Yes |
| 4 | ATMEGA328P-A | IC1 | TQFP-32_7X7MM_PITCH0.8MM | 1 | Yes |
| 5 | USB_OTG | P1 | USB_MICRO-B | 1 | Yes |
| 6 | LT1129CST-3.3 | U2 | SOT89-3_HOUSING_HANDSOLDERING | 1 | Yes |
| 7 | 100n | C6,C11,C7,C5,C21 | C_0805_HANDSOLDERING | 5 | Yes |
| 8 | 47µ | C4 | C_ELEC_6.3X5.7 | 1 | Yes |
| 9 | CH340G | U1 | SOIC-16_7.5X10.3MM_PITCH1.27MM | 1 | Yes |
| 10 | 12MHz | Y1 | CRYSTAL_HC49-SD_SMD | 1 | Yes |
| 11 | 100nF | C8,C3 | C_0805_HANDSOLDERING | 2 | Yes |
| 12 | CC1101 | IC2 | QFN-20-1EP_4X4MM_PITCH0.5MM | 1 | Yes |
| 13 | 220pF | C15,C20 | C_0603_HANDSOLDERING | 2 | Yes |
| 14 | 8.2pF | C18 | C_0603_HANDSOLDERING | 1 | Yes |
| 15 | 5.6pF | C19 | C_0603_HANDSOLDERING | 1 | Yes |
| 16 | 3.9pF | C16,C17 | C_0603_HANDSOLDERING | 2 | Yes |
| 17 | 27nH | L2,L1,L4 | C_0603_HANDSOLDERING | 3 | Yes |
| 18 | BNC | P5 | BNC_SOCKET_TYCO-AMP | 1 | Yes |
| 19 | 26MHz | Y3 | CRYSTAL_HC49-SD_SMD | 1 | Yes |
| 20 | 27pF | C13,C14 | C_0805_HANDSOLDERING | 2 | Yes |
| 21 | 100nF | C12 | C_0603_HANDSOLDERING | 1 | Yes |
| 22 | 56K | R2 | R_0805_HANDSOLDERING | 1 | Yes |
| 23 | PA_CONN | P2 | PIN_HEADER_STRAIGHT_2X03 | 1 | Yes |
| 24 | RF1101_CONN | P3 | PIN_HEADER_STRAIGHT_2X05 | 1 | Yes |
| 25 | ATMEG_ISP_CONN | P4 | PIN_HEADER_STRAIGHT_2X03 | 1 | Yes |
| 26 | 22nH | L3 | C_0603_HANDSOLDERING | 1 | Yes |
| 27 | OLED_DISP | P8 | PIN_HEADER_STRAIGHT_1X04 | 1 | Yes |
| 28 | SW_DOWN | SW2 | SW_PUSH_SMD | 1 | Yes |
| 29 | SW_LEFT | SW3 | SW_PUSH_SMD | 1 | Yes |
| 30 | SW_RIGHT | SW4 | SW_PUSH_SMD | 1 | Yes |
| 31 | SW_CENT | SW5 | SW_PUSH_SMD | 1 | Yes |
| 32 | SW_UP | SW1 | SW_PUSH_SMD | 1 | Yes |
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