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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
# {: D; o, V* d( e- #include <ESP8266HTTPClient.h>& o. [9 {7 C0 `# o7 b( u
- #include <ESP8266WiFi.h>
9 f1 [7 i+ M" ]0 }% K$ f& F$ L% N - #include <ESP8266WiFiMulti.h>
$ a* y7 Y" I1 S$ { - #include <ESP8266WebServer.h>, B& a& a$ c) t" D' ~3 n# p5 o+ ^6 c
- #include <arduino.h>
2 r4 a6 A( ^5 O# w - ESP8266WiFiMulti WiFiMulti;8 ~( a2 N# l4 `5 V
- ESP8266WebServer server(80);+ t; I: u5 Y1 A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! s6 J# ~! k0 l6 R - ADC_MODE(ADC_VCC);3 a7 H# L% h8 G' r6 o m
- void setup() {- v! k4 T8 P6 B9 x1 c, z% f
- Serial.begin(115200);
5 y% V0 s$ m" g* ~% j4 C. S3 I - Serial.print("\r\n\n");
# ~. r7 i# y! X0 n6 [ - pinMode(2,OUTPUT);
' e) K4 M6 k5 v - // WIFI$ ~, }& k7 O7 F& F! t G- N
- WiFi.mode(WIFI_STA);: _; q H/ U7 P) ~8 ^* z
- WiFi.hostname("Sparkle");
+ L& o5 Q* F; g - WiFiMulti.addAP("wifi ssid", "wifi password");
5 t2 [% B* ?9 L, ~% _ - int tryNum = 15;1 f; H y6 h* l: d2 f
- Serial.print("Connect WiFi");
; V- B; v& S; l! V( r& {2 O5 R - while (WiFiMulti.run() != WL_CONNECTED) {6 H, ~: X7 o. }0 t U# e
- digitalWrite(2,0);
# M& S4 z. L T. ] - delay(200);
2 w, b' F" `) S- W: p - digitalWrite(2,1);
# s- G7 _: J" h/ t" U0 ^7 Q - delay(300);
! \" ^# l3 G0 n% t. y4 Z - Serial.print(".");+ [4 g3 K" a& W
- tryNum--;# d* H% X5 w1 T6 n' L# `7 N% y1 W4 C
- if (tryNum == 0) {+ K ~7 o6 a# b* o( q
- // 1min* K+ U' B# T% \ V7 r. G) q
- // ESP.deepSleep(60e6);
4 U( w8 n3 K3 K4 h7 o- p& { - ESP.deepSleep(0);7 ]& G1 O, Z; M* O- [
- }' V4 u& n' F7 R
- }) k; K8 G7 O/ j, h0 V+ o- l
- Serial.print("\r\n");: Y1 D' ~3 v& O r' R V- H
- digitalWrite(2,1);5 W7 E/ O! H- M7 o+ u" `
- Serial.print("IP address : ");' S5 _) n6 |3 ?$ O: z
- Serial.println(WiFi.localIP());
' m9 b. Y) W% T - server.on("/", HTTP_GET, [](){
6 ]: D+ `8 O* ~9 C - server.sendHeader("Connection", "close");: c4 ~2 R" J" c3 R
- server.send(200, "text/html", serverIndex);( X3 X- ` A g/ z; a. {% B$ R
- });0 k$ \ C% k$ O1 G* R6 s! t! ^2 q
- server.on("/update", HTTP_POST, [](){
& Q7 D# O" J% F" z# f - server.sendHeader("Connection", "close");
* T) u9 Y& X- ~& [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 U9 w9 o b2 W" y1 I5 [ - ESP.restart();$ f% H! d& Z% n8 o
- },[](){$ @- h* i X0 A4 i& ~$ ?
- HTTPUpload& upload = server.upload();
" z J( F( ^7 x9 I9 m - if(upload.status == UPLOAD_FILE_START){: I5 r, P9 W9 I& B N- Z }7 }" x
- Serial.setDebugOutput(true);5 `6 D) H: e B: v
- Serial.printf("Update: %s\n", upload.filename.c_str());
% ~6 f8 b1 w$ l) I4 q2 f* D- |# Y6 X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ {5 s a2 C: ]& q4 ^. ]! r7 J - if(!Update.begin(maxSketchSpace)){" X% U" H4 U: r7 ?: m- I
- Update.printError(Serial);( _4 q9 c# K& [6 ], {9 \5 a6 o: Z0 }; _
- }
6 j7 \1 M- p9 N: ]' g, M( y - } else if(upload.status == UPLOAD_FILE_WRITE){0 x9 D \0 u2 ^% n5 L) l& F1 \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% n% Y" S$ M% O5 K - Update.printError(Serial);" C1 R, {* _7 F) H; |" d3 |" m8 u
- }
" M" K, _* } C! \ - } else if(upload.status == UPLOAD_FILE_END){
7 Y( h6 F v8 H- \6 I7 M7 n - if(Update.end(true)){7 Y" z3 l3 d, f( Q: d8 P
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) J- i7 }2 S- Y - } else {( k# A$ p' s" T
- Update.printError(Serial);2 N8 i/ ?' i ?4 ?7 z* x
- }
* {/ C& T/ }, ~* h* K+ Z4 X - Serial.setDebugOutput(false);
8 W3 m8 a+ v9 a2 r, K7 l2 l - }$ |6 r1 E) ]1 s1 o1 u
- yield();4 ~3 U# O# ^; J# [
- });, X6 d3 i6 |4 D4 h
-
& b, K" O# V& V: S - digitalWrite(2,0);# a o8 u( }- ^4 z( M, v+ t
- mainAction();: y7 ^, x6 y: p! [* Q, S
- if (digitalRead(0)){
5 a& m6 g$ p; k! Y - ESP.deepSleep(0);
$ w% l$ I1 r: h& B* \: o% T - } else { Q. z; P: F6 C; U" u5 o
- server.begin();
" }. j' d2 N$ l - }7 |) n. |+ y, v2 g$ g% V3 p
- }* K1 S Q- j2 j0 E: y% x$ x8 f1 X
- void loop() {* O# x* r8 [3 x8 S
- server.handleClient();; n* g |! C& z& v; |8 M" [
- delay(1);2 n+ `2 ?! \7 t. x1 M3 {
- }
2 l, t- Z9 Y$ U& E1 q - String doGet(String url){/ b% ?1 w+ V% ?+ l$ G/ q( Q& B
- if ((WiFiMulti.run() == WL_CONNECTED)) {, e( ~+ t3 @+ M! c
- HTTPClient http;- d! L. `4 ?2 Q- d6 c
- Serial.println("[HTTP] begin...");
: e9 `7 z9 I2 j& n4 U - if (url.startsWith("https")) {
L& c4 v8 ~; z, o - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; \ b# n4 O; ]" |8 G% E - } else {
5 v5 ~8 }& R, H n8 @/ l - http.begin(url);
8 F( @" T* v0 ^ R3 Y: s0 { - }* s" j- x2 |6 J$ F5 }* M
- Serial.println("[HTTP] GET...");/ O) u4 y6 O' C; D
- int httpCode = http.GET();0 [, h/ A. g( R6 t! N) ?
- if (httpCode > 0) {
( P% f* q% I7 N; c7 E( ]" f/ q1 U5 K - Serial.printf("[HTTP] code: %d\n", httpCode);
$ A) {$ j& [6 H+ ~- @ - if (httpCode == HTTP_CODE_OK) {
1 N+ \! W) u, Y' z0 I# a - String payload = http.getString();* d2 c1 t% C4 A, T8 T) G- p
- Serial.println(payload);, P8 l$ z) U" Q5 Y; ?! x
- Serial.print("\r\n");
. _( t4 `) ?4 V- `: s0 h, `, |+ k - return payload;' J4 k c# S( n) L
- }5 j# ]' \$ x/ ^
- } else {& H9 q; Z+ L+ [5 z
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 C$ Y( t( \! \# |1 F" f
- http.errorToString(httpCode).c_str());" O' u7 z+ Q4 O
- }9 k! u+ m3 p6 O7 S
- http.end();
8 P3 O& j( r" y5 u" g+ | - return "";8 N+ k1 Z" S/ i4 G7 i
- }2 X, q7 z+ y* _- E G
- }
$ G+ c0 p- d# \, Y% d0 A' C - void mainAction() {
8 Y4 g5 ~0 F. O- X( { - // 发送请求6 |5 q- G) u5 L. \
- doGet("http://google.cn");
. |$ l" x. T; T7 [2 D- h* O# W - }5 g: K7 O: B/ W2 @! Z6 J
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