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Description
Waveshare 33970 ESP32-S3 2.16 Inch AMOLED Display Development Board, Supports Dual Microphones, 2.4GHz Wi-Fi And BLE 5, 339701. Equipped with the ESP32 S3R8 high performance Xtensa 32 bit LX7 dual core processor, with a main frequency of up to 240 MHz 2. Supports 2. 4GHz Wi Fi (802. 11 b g n) and Bluetooth 5 (LE), with built in antenna 3. Equipped with 512KB of SRAM and 384KB of ROM, and stacked 8MB PSRAM and externally connected 16MB Flash 4. Adopting the Type C interface, enhancing the user's usage convenience and device compatibility 5. Equipped with a 2. 16 inch
1. Equipped with the ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240 MHz
2. Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with built-in antenna
3. Equipped with 512KB of SRAM and 384KB of ROM, and stacked 8MB PSRAM and externally connected 16MB Flash
4. Adopting the Type-C interface, enhancing the user's usage convenience and device compatibility
5. Equipped with a 2.16-inch capacitive touch high-definition AMOLED screen, with a resolution of 480 x 480, 16.7M colors, capable of clearly displaying color images
6. Using AMOLED screen, featuring higher contrast, wider viewing angle, rich colors and fast response time, providing better visual effects, while having advantages such as slim design, low power consumption and flexibility
7. Equipped with the CO5300 driver chip and the CST9220 capacitive touch control chip, communicating via QSPI and I2C interfaces respectively, without occupying excessive interface pin resources
8. Equipped with a dual microphone array, capable of implementing noise reduction and echo cancellation audio algorithms, suitable for precise voice recognition and near-field/far-field voice wake-up applications
9. Equipped with the QMI8658 six-axis inertial measurement unit (3-axis acceleration, 3-axis gyroscope), capable of detecting motion posture and step-counting functions
10. Equipped with two customizable side buttons, PWR and BOOT, facilitating the development of custom functions by using the buttons
11. Equipped with a 3.7V MX1.25 lithium battery charging and discharging interface
12. AXP2101 provides an efficient power management solution, supporting multiple configurable output voltages, integrating charging and battery management functions, which helps to extend battery life
AMOLED screen parameters
1. Display panel: AMOLED
2. Display resolution: 480 x 480 pixels
3. Display brightness: 600 cd/square meter
4. Communication interface: QSPI
5. Touch: supported
6. Display size: 2.16 inches
7. Display colors: 16.7M
8. Contrast ratio: 100000:1
9. Driving IC: CO5300
10. Touch IC: CST9220
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2468 reviews
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Product Reviews
★★★★★ 5
Solid, Reliable, and Makes the Gross Job Way Easier
Style: 20' Rhino Sewer Hose
Solid, Reliable, and Makes the Gross Job Way Easier
This is hands-down the best sewer hose kit I’ve used. It’s sturdy, easy to connect, and doesn’t feel flimsy like some of the cheaper ones. The clear elbow is a lifesaver because you can actually SEE when everything is done (which every RVer knows matters). The hose holds its shape, stretches exactly as needed, and packs up neatly. If you’re full-time or travel often, this is the one you want.
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Reviewed in the United States on December 5, 2025
★★★★★ 5
Best hoses out there
Style: 20' Rhino Sewer Hose
Great hoses. Extremely flexible yet sturdy. Manoeuvres around things easy. Perfect thickness without taking up a ton of space. Compatible with alot of accessories offered. No complaints
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Worth the money. Get it.
Style: 20' Rhino Sewer Hose
I am a full time RV'er and these are the best hoses I have worked with. At this point I just do not buy anything else unless I have no choice. Yes, everything fails over time but these last the longest. If you want solid equipment you just don't have to worry about, get these hoses.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Good product for the trip
Style: 20' Rhino Sewer Hose
Good product
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Reviewed in the United States on May 12, 2026
★★★★★ 4
Secure, clean hose, poor durability.
Style: 20' Rhino Sewer Hose
The connectors, and plugs work great. I operate an Arctic Fox 990 TC. Plugging the ends keeps any residual in the hose and prevents odors and they ends are very easy to operate.
I operate an RV in a climate controlled environment, dumping grey water roughly once every day or two for odor control, with occasional trips dumping more like 5-7 day intervals. I only use one of the two hoses and after about 175 cycles the hose split apart near the end. I shortened it at the break and reattached but within another 10 uses the hose split in the middle. Extending and contracting the hose is hard on it and weakens the folds in the plastic the point of failure within certainly less than 200 uses at 50+F temperatures, so don't expect great longevity out of the hose. I image if you dump in cold temperature, subject it to a lot of movement by leaving it hooked up outside the hose could survive even fewer extensions. If you only dump a few times a year it may last you twenty years or more. The good news is that if you pay attention you'll likely notice the hose split before you run the sewage through it, so if you carry a spare you'll at least be able to dump. I ordered another pair so I can always have at least one spare on hand and I figure my failure rate will be about once every 9 months or so.
Camco makes other hoses, including an Extreme that likely doesn't pack tightly enough for two 10' sections in my bumper. I don't need crush resistance, I need durability, so the more expensive hose really wouldn't be an improvement for me since I wouldn't be able to carry a backup. I'm guessing all of these hoses will have a similar durability limitation, especially if extended when cold. I'd like to see a slightly softer, more durable material that will still hold it's shape when dumping, but maybe that's not possible with current plastic characteristics.
Main take away is make sure you've got a spare sewer hose section on hand if you have a way to store it.
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Reviewed in the United States on December 21, 2021