Jeff Epler
4715875cc4
.. leading zeros are required for `frontmatter` to treat them as dates
rather than strings, apparently per the YAML specification.
This was done by script:
```py
import re
import datetime
import pathlib
import sys
import frontmatter
rx = re.compile(r'^(\s*)date_added:.*$', re.M)
for path_str in sys.argv[1:]:
print(path_str)
path = pathlib.Path(path_str)
post = frontmatter.load(path)
date_added = post.get("date_added", "")
if isinstance(date_added, datetime.date):
continue
if isinstance(date_added, str):
try:
date_added = datetime.datetime.strptime(date_added, "%Y-%m-%d")
except ValueError as exc:
print(f"Failed to parse date {date_added} in {path_str}: {exc}")
continue
date_added = date_added.date()
content = path.read_text("utf-8")
new_content = rx.sub(lambda m: f"{m.group(1)}date_added: {date_added}", content)
assert content != new_content
path.write_text(new_content, "utf-8")
```
1.5 KiB
1.5 KiB
| layout | board_id | title | name | manufacturer | board_url | board_image | bootloader_id | date_added | family | features | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| download | waveshare_esp32_s2_pico_lcd | ESP32-S2-Pico with LCD Download | ESP32-S2-Pico with LCD | Waveshare |
|
waveshare_esp32_s2_pico_lcd.jpg | waveshare_esp32_s2_pico_lcd | 2022-08-22 | esp32s2 |
|
This is a WiFi development board with compact size, plenty peripheral interfaces, integrated low-power Wi-Fi System-on-Chip (SoC) and mass memory, supporting Raspberry Pi Pico expansion board ecosystem. Equipped with hardware crypto accelerator, RNG, HMAC and Digital Signature module, it can meet the security requirements of the Internet of Things.
Technical details
- ESP32-S2FH4 - Xtensa single-core 32-bit LX7 240Mhz microprocessor
- Boot & Reset buttons to get into the bootloader
- TPS63000DRCR on-board 1.8A current high efficiency boost/buck DC-DC power supply IC
- Integrated 320KB SRAM, 128KB ROM, 8MB PSRAM, 4MB Flash memory
- Support IEEE802.11 b/g/n, on-board 2.4 GHz WiFi ceramic antenna, up to 150 Mbps data transfer rate
- USB-C connector, no more plug orientation problem
- On-board 0.96inch 160×80 pixels 65K color IPS LCD display.
- On-board single 3.7V lithium battery charge/discharge header, suitable for mobile IoT product design.
Waveshare wiki link.