From f214ad261b0c50f93fbc16dc47f50dbbb21ecafa Mon Sep 17 00:00:00 2001 From: Jet Lee Date: Fri, 30 Aug 2019 12:25:36 -0400 Subject: [PATCH 1/2] Clarification of voltage requirements on each chip --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index ad55b41..2740719 100644 --- a/README.md +++ b/README.md @@ -16,6 +16,8 @@ With a dedicated USB converter, the ESP8266 can be plugged in directly to the pr For a generic USB-to-TTL converter, the ESP8266 can be wired for progamming with a level shifter (or using voltage dividers if a level shifter is not available). **The ESP8266 has an operating voltage of 3.3 V and is NOT 5 V tolerant.** For programing, connect VCC and enable to power, RX and TX to their appropriate inputs, and GND and GPIO0 to ground. +Note: The [ESP82366](https://user-images.githubusercontent.com/32310882/64036322-e7ceea00-cb20-11e9-8db5-5e38aa3ca02b.png) is the small black chip in the wifi module. The larger [blue chip](https://user-images.githubusercontent.com/32310882/64036213-a6d6d580-cb20-11e9-873c-5798a7c38486.png) converts the voltage from 5 V down to 3.3 V, enabling the blue chip's pins to be plugged into a 5 V source. + ### Uploading Code Open the sketch from this repository in Arduino IDE. Set the board type by selecting **Tools > Board > Generic ESP8266 Module**. Set the flash mode by selecting **Tools > Flash Mode > DIO**. Set the memory size by selecting **Tools > Flash Size > 1M (no SPIFFs)**. Set the appropriate port and click upload. From 6266d977ae770f48fdb48159dcb76dd34127d5b2 Mon Sep 17 00:00:00 2001 From: nperkin3 Date: Fri, 31 Jan 2020 13:34:36 -0500 Subject: [PATCH 2/2] Update README.md --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 2740719..2775856 100644 --- a/README.md +++ b/README.md @@ -16,7 +16,7 @@ With a dedicated USB converter, the ESP8266 can be plugged in directly to the pr For a generic USB-to-TTL converter, the ESP8266 can be wired for progamming with a level shifter (or using voltage dividers if a level shifter is not available). **The ESP8266 has an operating voltage of 3.3 V and is NOT 5 V tolerant.** For programing, connect VCC and enable to power, RX and TX to their appropriate inputs, and GND and GPIO0 to ground. -Note: The [ESP82366](https://user-images.githubusercontent.com/32310882/64036322-e7ceea00-cb20-11e9-8db5-5e38aa3ca02b.png) is the small black chip in the wifi module. The larger [blue chip](https://user-images.githubusercontent.com/32310882/64036213-a6d6d580-cb20-11e9-873c-5798a7c38486.png) converts the voltage from 5 V down to 3.3 V, enabling the blue chip's pins to be plugged into a 5 V source. +Note: The [ESP8266](https://user-images.githubusercontent.com/32310882/64036322-e7ceea00-cb20-11e9-8db5-5e38aa3ca02b.png) is the small black chip in the wifi module. The larger [blue chip](https://user-images.githubusercontent.com/32310882/64036213-a6d6d580-cb20-11e9-873c-5798a7c38486.png) converts the voltage from 5 V down to 3.3 V, enabling the blue chip's pins to be plugged into a 5 V source. ### Uploading Code