From 06e532ecc05e977c362e4e6313930ae13a86afa0 Mon Sep 17 00:00:00 2001
From: jonpas <jonpas33@gmail.com>
Date: Wed, 16 Jan 2019 13:18:00 +0100
Subject: [PATCH] Add VGS ESP8266 UDP to UART transparent bridge

---
 VGS_ESP8266_Bridge_UDP-UART/README.md |  8 +++++++
 VGS_ESP8266_Bridge_UDP-UART/main.py   | 32 +++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 VGS_ESP8266_Bridge_UDP-UART/README.md
 create mode 100644 VGS_ESP8266_Bridge_UDP-UART/main.py

diff --git a/VGS_ESP8266_Bridge_UDP-UART/README.md b/VGS_ESP8266_Bridge_UDP-UART/README.md
new file mode 100644
index 0000000..1fa51c2
--- /dev/null
+++ b/VGS_ESP8266_Bridge_UDP-UART/README.md
@@ -0,0 +1,8 @@
+Transparent UDP to UART bridge for ESP8266 (ESP-01 with 1MB flash) using MicroPython.
+
+### Setup
+
+- Flash MicroPython to ESP8266 module
+- Configure UDP and UART details in `main.py`
+- Upload `main.py` to the file system (`ampy --port <port> put main.py`)
+- Reboot ESP8266 module
diff --git a/VGS_ESP8266_Bridge_UDP-UART/main.py b/VGS_ESP8266_Bridge_UDP-UART/main.py
new file mode 100644
index 0000000..2ce2716
--- /dev/null
+++ b/VGS_ESP8266_Bridge_UDP-UART/main.py
@@ -0,0 +1,32 @@
+import network
+import socket
+from machine import UART
+
+
+# CONFIGURATION
+AP_NAME = "PixRacer"
+AP_PASS = "pixracer"
+HOST = "0.0.0.0"
+PORT = 14450
+UART = 0
+BAUDRATE = 115200
+
+
+# Connect and transparently send raw data from UDP to UART
+sta_if = network.WLAN(network.STA_IF)
+ap_if = network.WLAN(network.AP_IF)
+
+sta_if.active(True)
+ap_if.active(False)
+
+sta_if.connect(AP_NAME, AP_PASS)
+
+s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+s.bind((HOST, PORT))
+
+uart = UART(UART, BAUDRATE)
+uart.init(BAUDRATE)
+
+while True:
+    data = s.recv(1024)
+    uart.write(data)