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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)
) v H" M9 O& o ^- #include <ESP8266HTTPClient.h>
3 ~, R5 F3 b0 m! ~: o" O! h - #include <ESP8266WiFi.h>6 {/ o0 U/ }% x! T
- #include <ESP8266WiFiMulti.h>
% L! a( R* w B) ]6 p; P3 { - #include <ESP8266WebServer.h>
! [" z. j9 _( X7 u$ y. Y - #include <arduino.h>
, y' k D2 ?2 X g- d. i E9 Z5 Y, } - ESP8266WiFiMulti WiFiMulti;: _- `) l) R7 r1 n+ m
- ESP8266WebServer server(80);
! A$ G( |5 L2 I - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& P) N7 p0 _# o* W# _: R - ADC_MODE(ADC_VCC);
. J4 [0 C& Z% Q" p! C - void setup() {- l( v% y6 _1 w8 s9 f @: c
- Serial.begin(115200);
' T5 a8 G2 F9 y& Y U' h - Serial.print("\r\n\n");
: a. {) @& b6 }) B8 F - pinMode(2,OUTPUT); n0 m; D5 t9 B5 f) N% N- M
- // WIFI
9 z6 N1 ~" u! V$ p - WiFi.mode(WIFI_STA);
) p+ v! ~$ ~* I) N4 G2 i1 I5 k - WiFi.hostname("Sparkle");) o2 a! M- o0 k7 e/ f$ Z0 w1 Z7 L
- WiFiMulti.addAP("wifi ssid", "wifi password");
' w5 `! p) `7 \% X Y - int tryNum = 15;; W& O/ C) v- b/ B8 c
- Serial.print("Connect WiFi");$ z2 `- T% h/ }+ V2 j
- while (WiFiMulti.run() != WL_CONNECTED) {" S% g% C/ E3 }1 m! J( K5 f2 J9 ?
- digitalWrite(2,0);
3 K! e; s& V! _( ~0 {! q O, F$ v& a9 x - delay(200);
2 w% g1 S& x& _3 x - digitalWrite(2,1);
0 q4 d2 q9 r1 v' I+ n; ?- h6 C3 C - delay(300);% S% O0 n8 Y( L' R5 h9 G% ]! t9 j, F
- Serial.print(".");, k7 Z, v9 f @+ m) F! o
- tryNum--;
7 W( I' f/ j1 X4 N: K* ~- J/ L - if (tryNum == 0) {1 g7 I, c1 f$ }8 M2 Z
- // 1min
+ `$ s- X9 |6 d - // ESP.deepSleep(60e6); e9 ^. Q* S& w# [, y
- ESP.deepSleep(0);
- K9 a) i/ g- V - }1 H; |9 i5 F; M3 c2 ]
- }1 }! s3 U. h- A/ K' C$ w9 D+ k
- Serial.print("\r\n");
* `2 w C6 F! i, {5 ]) q - digitalWrite(2,1);& u- f9 v, }& h9 B; |, }# E# [
- Serial.print("IP address : ");
9 d4 m) w: @1 k* t; H8 O5 v - Serial.println(WiFi.localIP());
8 L$ a; T/ ^# x/ U% x - server.on("/", HTTP_GET, [](){/ N X( k0 r' I! H( x; w4 g
- server.sendHeader("Connection", "close");
[* }5 n3 u, w+ P' p4 b7 V: @ - server.send(200, "text/html", serverIndex);3 y. m" j/ R7 N W. P0 j
- });4 ]4 b3 v- T1 D
- server.on("/update", HTTP_POST, [](){1 D5 z5 J: v3 B; H
- server.sendHeader("Connection", "close");
. b: o/ G3 `; E7 A7 o* ] - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 r0 [) [3 U8 C$ [ - ESP.restart();
' S6 ?( O/ L2 Y$ q+ b - },[](){. |+ c, j7 f8 R
- HTTPUpload& upload = server.upload();
$ {! Q! H* ]+ f - if(upload.status == UPLOAD_FILE_START){
- `$ u7 v( i' Q3 G - Serial.setDebugOutput(true);7 x1 D1 |' p5 E) R. [; w; W) k9 Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
( @4 k( V3 \1 w8 \$ ], [ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 N* _; @3 K9 ?: v* H. ] - if(!Update.begin(maxSketchSpace)){. x3 L5 }$ e' H |: E9 _
- Update.printError(Serial);
$ g* b' S* |' Y h1 v5 X+ U - }
& W$ j e& l2 X - } else if(upload.status == UPLOAD_FILE_WRITE){0 E0 D7 o& u$ n. j
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' L) d4 J n4 k+ _6 X
- Update.printError(Serial);1 |- C, C0 |& c* d$ D$ Y0 t6 G5 v
- }2 D3 _7 x0 ^* m$ t! j: y. S" Y- R! _) e
- } else if(upload.status == UPLOAD_FILE_END){
( B5 ^/ Q# Z+ O7 P7 P0 E" h& } - if(Update.end(true)){
& f) Z' U" ~& \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 w- ^+ V5 y7 K
- } else {
+ W6 G A' r: i' n - Update.printError(Serial);1 u* B2 o% h! `; A9 ~" W h- \
- }1 _$ B ?* j! F
- Serial.setDebugOutput(false);
) V* E; }' s+ {8 a7 W3 c/ S6 ?6 K$ H% v - }
" q6 J4 u! a6 B* _2 N - yield();
& c) \3 B+ L" E& _4 S# ` - });
+ x) i# K0 t; p6 B8 W - % G3 J! T! t2 X5 {
- digitalWrite(2,0);& b: |6 U9 }! }+ g- D
- mainAction();
" N2 D* I' z7 Y1 Y& [. @5 ~ - if (digitalRead(0)){
( R4 u- h( J7 h* E - ESP.deepSleep(0);
2 r7 L2 L7 w9 f - } else {+ W/ e2 i0 x: b4 p3 e
- server.begin();
' `) @. D+ j8 V0 R6 n9 x) B - }
: |( r: U t1 J - }, D8 H4 D: Q$ U0 ~4 ~
- void loop() {
4 q6 Z$ ^* l, T" \( X# { - server.handleClient();
& R5 @+ B. v1 n+ g- \3 N. ~ - delay(1);
; z A7 X6 t" U6 U _+ ` - }) S7 z- E" P I( B7 H
- String doGet(String url){2 G; f g: c! v' L% w! u
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 E, _1 b1 ^- K$ h! ]0 v: A1 x
- HTTPClient http;
- |, X6 s$ ~# |1 {- I7 E* _ - Serial.println("[HTTP] begin...");6 o: K7 q! S$ r( o
- if (url.startsWith("https")) {
% p& c, g" {: C: M& N& Y( l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" L$ U5 p' `9 y( q* w0 s# Y# ]: v - } else {0 Z7 g, |5 o7 ]6 a, {) o
- http.begin(url);4 e8 q* ^/ G4 L' f$ y
- }
3 \0 f( v8 [) w- Y8 H - Serial.println("[HTTP] GET...");! x( ]! W" o H: `( I9 v3 u. u
- int httpCode = http.GET();* `0 B! T" B8 j) J9 v
- if (httpCode > 0) {
( T# O, E2 w. t" k0 c! W6 ^0 O! k# h - Serial.printf("[HTTP] code: %d\n", httpCode);
. m6 @) s2 L7 e a6 l' c, u1 S! t/ { - if (httpCode == HTTP_CODE_OK) {
; {- x, |- |4 l6 D0 W - String payload = http.getString(); f' x) N" c, I4 l
- Serial.println(payload);( B5 I; v% R6 p Z3 D0 k# S
- Serial.print("\r\n");
( H7 H) d# \6 P1 D( a/ U% J - return payload;
% k8 W5 V; ?! Y3 K/ G1 I4 C+ g - }
$ s/ y5 F; l9 \# o - } else {
$ S& ]' _* t2 T- @0 u' u* k - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ Q9 e( D* G a3 f - http.errorToString(httpCode).c_str());3 C8 Q* c8 q J7 P; ~5 M
- }1 g; j0 u' e# J% @& n- Z' N
- http.end();
1 N; [% f3 m2 F( m+ ` - return "";
F7 [/ \! l! {/ Z/ g2 n( _. c - }
' S3 E7 G3 X" w' z; P* w - }
0 v& o% {% F! h* N% _6 l - void mainAction() {
/ t6 Q7 `; r7 H2 ^# O g& r9 \, _2 X - // 发送请求
% l2 | X6 ?9 Y% E& \ - doGet("http://google.cn");. n7 t+ r& ?/ n6 f
- }
# m' n- ?0 L0 f) H: H1 |6 T
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