5 Apr 2021 |
jamesmunns | I self declare compliance of my prototype kits! | 13:53:16 |
therealprof | Certainly not if they're leaded. 😉 | 13:53:55 |
jamesmunns | Lead free hasl! | 13:54:03 |
jamesmunns | I hope the solder they use is lead free :p | 13:54:16 |
jamesmunns | The solder I use certainly isn't | 13:54:25 |
jamesmunns | Though I plan to switch when this roll runs out. | 13:54:44 |
jamesmunns | Though that might be a year or two :p | 13:55:05 |
jamesmunns | I'm hella off topic for this room tho | 13:55:18 |
dirbaio | not like there's on-topic discussion here lately anyway... | 13:56:23 |
jamesmunns | I should just rename #anachro:matrix.org to james-offtopic-embedded | 14:10:24 |
thejpster | I wasn't sure I could hand solder a USB C | 18:55:24 |
thejpster | Besides, the DC in is 12V, just in case you ever needed to power a drive with a motor | 18:55:53 |
thejpster | Pretty sure you can make an IDE to SPI adaptor with a second Pico | 18:56:14 |
thejpster | I hadn't considered getting JLC to do the jellybeans. That's not a bad idea. | 18:56:49 |
thejpster | It's designed to be a self assembly kit. All the SMT is 0805 or SOIC (1.27mm pitch). | 18:57:32 |
thejpster | Except I think one QFP32 (0.8mm) and one SSOP (0.65mm) | 18:58:04 |
thejpster | If you want to buy a board ready made, buy a Pi | 18:58:17 |
dirbaio | speaking IDE with the PIO? isn't it too many pins? | 18:58:21 |
thejpster | Pico has 26 | 18:59:12 |
thejpster | Maybe it's easier to use an STM32 with an EBI. | 18:59:35 |
thejpster | GitHub.com/Neotron-Compute | 19:08:09 |
thejpster | It's under Neotron-Pico | 19:08:21 |
thejpster | And I'll take PRs for the hardware now, and the software once I've actually started it | 19:08:43 |
thejpster | Well there's a skeleton OS, but no Pico BIOS yet. Just the F7 Discovery and the Tiva Launchpad. | 19:09:22 |
thejpster | Boards are under £10 each. They're 240x170mm 4 layer impedance controlled LeadFree HASL. I might go ENIG after the first batch. | 19:12:39 |
thejpster | PArts are reasonable. £5 for the Amp. £4 for the Pico. £1 each for the RGB buffer, ESD protection, RTC, SPI IO expander and the octal buffer. | 19:15:46 |
thejpster | £4 for the PSU. Couple of LDOs. | 19:16:00 |
thejpster | You could spend a bunch on the card edge if you wanted. Or wedge your card into a standard pin header and be generous with the solder. | 19:17:10 |
13 Apr 2021 |
| theunkn0wn1 joined the room. | 06:56:15 |
| Michael joined the room. | 19:16:34 |