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Description
TTGO T-Beam ESP32 Bluetooth WiFi Module 868MHz GPS NEO-M8N LORA 32 Module with Antenna & 18650 Battery Holder, 868MHz1. New version of ESP32: REV1 2. Wi Fi Bluetooth 4MB flash memory 4MB PSRAM 3D antenna LORA Product description 1. Working voltage: 1. 8~3. 7v 2. Acceptable current: 10~14mA 3. Emission current: 120mA at +20dBm 90 mA at +17dBm 29mA at +13dBm 4. Working frequency: 868MHz version SX1276 5. Transmitting power: + 20dBm 6. Receiving sensitivity: 139dBm at LoRa and 62. 5Khz & SF = 12 and 146bps 136dBm at LoRa and 125Khz&SF = 12 & 293bps 118dBm at LoRa &
1. New version of ESP32: REV12. Wi-Fi/Bluetooth/4MB flash memory/4MB PSRAM/3D antenna/LORA
Product description
1. Working voltage: 1.8~3.7v
2. Acceptable current: 10~14mA
3. Emission current:
-120mA at +20dBm
-90 mA at +17dBm
-29mA at +13dBm
4. Working frequency: 868MHz version SX1276
5. Transmitting power: + 20dBm
6. Receiving sensitivity:
- 139dBm at LoRa and 62.5Khz & SF = 12 and 146bps
- 136dBm at LoRa and 125Khz&SF = 12 & 293bps
- 118dBm at LoRa & 125Khz & SF = 6& 9380bps
- 123dBm at FSK & 5Khz & 1.2Kbps
7. Frequency error: +/- 15KHz
8. FIFO space: 64Byte
9. Data rate:
- 1.2K~300Kbps at FSK
- 0.018K~37.5Kbps in LoRa
10. Modulation mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK
11. Interface form: SPI
12. Sleep current:
- 0.2uA in SLEEP
- 1.5uA in IDLE
13. Working temperature: -40 degrees Celsius-+ 85 degrees Celsius
14. Digital RSSI function
15. Automatic frequency correction
16. Automatic gain control
17. RF wake-up function
18. Low pressure detection and temperature sensor
19. Fast wake-up and frequency hopping
20. Highly configurable packet handler
Global Positioning System
1. GPS module NEO-M8N, 3V-5V power supply universal
2. Designated module with ceramic antenna, super strong signal
3. Save configuration parameter data EEPROM Down
4. With data backup battery
5. With LED signal indicator
6. The default baud rate: 9600
Power
1. TP5400
2. 2A battery management
3. LED indicator: There are 4 LEDs to display the battery status in real time.
4. Power button: Click once to start. Tap twice quickly to close.
5. USB
6. CP2104-GMR
7. Pre-flash firmware: SoftRF V4.0
Packing list:
1. TTGO T-Beam ESP32
2. 433MHz antenna
3. Pin x 1
4. Screw Washer x 3
Note: OLED is not included in the invoice
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
4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Excellent for my sensitive skin and rosacea
Another excellent product from this brand. I have type 1 rosacea on my cheeks, even when I avoid triggers (like red wine, warm weather, etc.), and very sensitive skin overall. I've been using the cicalfate serum from this brand for the sensitivity, but it didn't help the redness. After two weeks of using this twice daily, I noticed a significant difference. After a month, I had no redness unless I encountered a trigger. Even then, the intensity of the redness seemed less. I tried going without this product for a month when the first bottle ran out, and sadly, the redness started coming back within a cycle of weeks. I've got this on auto-delivery now, along with the cicalfate serum. I never want to be without it!
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Reviewed in the United States on October 29, 2025
★★★★★ 5
Best moisturizer for sensitive skin
I have very sensitive skin and have tried many products over the years. This is by far the best daily moisturizer. I don’t wear makeup other than under eye concealer. This keeps my skin looking and feeling great. Not greasy. One bottle lasts about a month. I have probably bought this 10 times in the past year.
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Reviewed in the United States on February 27, 2026
★★★★★ 1
Not as good as the antirougeurs cream
I used to use the Antirougeurs cream and loved it but since they no longer make it, I had to switch. I have been using the redness expert cream for a week and it makes my face even redder. I also started to break out. The texture is good but I don’t think it works like the other cream.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Really helps with the redness
Years ago, my dermatologist recommended this line whenever I had a problem with redness. The redness occurs when I spend time outside, even with sunscreen & a hat. When I perspire it irritates my skin & poof, redness. I started using this, once I found it on Amazon, & this really helps to relieve the pain, discomfort & burning sensation. It has a cooling affect on your skin. Until I found this brand I simply suffered until the irritated skin healed. I apply this at night, especially after being outside & sweating & the redness is gone in the morning. I plan to use this until I no longer need it.
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Reviewed in the United States on November 20, 2024
★★★★★ 4
Runny
Doesn't flare up my rosacea but does not reduce redness either. Less moisturizing and runnier than Antirougeurs FORT, which appears to be discontinued. Also dislike the bulky packaging. The squeeze tube took up less space in my travel bag.
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Reviewed in the United States on December 14, 2024