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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)! h. {. v6 r. x8 ^0 u
- #include <ESP8266HTTPClient.h>
7 v7 p ]. r! _ - #include <ESP8266WiFi.h>
' b6 Q0 A: N+ v8 q+ y& | - #include <ESP8266WiFiMulti.h>
- P9 U1 }% z! v - #include <ESP8266WebServer.h>
' c6 D1 ]' S" c4 ` - #include <arduino.h>
8 b' t0 @' Q1 P; O" E: w3 u - ESP8266WiFiMulti WiFiMulti;
: J! B, s( q4 _6 a - ESP8266WebServer server(80);5 V/ U! u. z/ R( }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; O6 W( T; a( s* F7 v; u - ADC_MODE(ADC_VCC);
! W3 N' y3 ?8 s2 C! g- a - void setup() {
H6 K- ~1 w' t- X6 _ - Serial.begin(115200);* g+ |: }* w0 l
- Serial.print("\r\n\n");
1 R. |' {4 x# p: ]9 B( }( v% X1 G - pinMode(2,OUTPUT);
7 E b& }$ i& k1 ], @: E5 ^ - // WIFI1 V _: w& w' }/ `7 e
- WiFi.mode(WIFI_STA);3 Z/ u: l. A) n" F0 l9 J3 n
- WiFi.hostname("Sparkle");5 X# f- Z* z9 |, G
- WiFiMulti.addAP("wifi ssid", "wifi password");# F( v. ~3 p% ?$ z( ~3 a* ^
- int tryNum = 15;4 K7 G+ u' R: P. [
- Serial.print("Connect WiFi");! e2 ]; \ v I3 V3 B
- while (WiFiMulti.run() != WL_CONNECTED) { W. f2 e3 p8 v+ ]0 B8 P- i. K& A
- digitalWrite(2,0);
' k4 M/ M" w% J& Y2 g2 X - delay(200);, f# e5 W6 w% x* R2 Q3 z* c
- digitalWrite(2,1);- Y5 ~# ^' P! ^
- delay(300);
l/ g4 `$ ]. H7 j5 A - Serial.print(".");( R& a8 K$ |4 M4 v$ M9 ]
- tryNum--;/ Y& u/ \8 |4 j# u) y
- if (tryNum == 0) {
( B/ A, n H1 P, _ - // 1min
m( L4 u, J6 X X7 h$ D - // ESP.deepSleep(60e6);8 x8 J" m' t9 ~. U
- ESP.deepSleep(0);, F5 H+ ^+ J' `5 g6 N
- }
+ z) P/ G6 I1 h3 x; g" p - }* b5 j+ P: l) F) n/ { T7 H
- Serial.print("\r\n");
* y( Z. { I- @. _5 O9 ~ - digitalWrite(2,1);
& H% h. f$ z8 J$ F- C+ w" c7 | - Serial.print("IP address : ");( {1 ~' B5 g, c3 j
- Serial.println(WiFi.localIP());
2 p% `9 E, \/ ], [+ J+ N - server.on("/", HTTP_GET, [](){
4 h+ M7 y# u8 u3 D, a - server.sendHeader("Connection", "close");
* A* b! R9 ]; Z, O5 o4 y - server.send(200, "text/html", serverIndex);3 e9 W' j; [1 s" a6 M* o s
- });
2 L9 _" G3 ]2 ?! r2 w9 U. _' q - server.on("/update", HTTP_POST, [](){
: a, E$ F2 K# n# J: w2 B! e8 ^ - server.sendHeader("Connection", "close");' H( a$ u3 [) |4 l; K6 P2 P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 A, Z5 W" S9 E# W+ ? - ESP.restart();" ]" \% y: `9 A8 Y! _
- },[](){ ^" `6 u+ g5 h& C3 X
- HTTPUpload& upload = server.upload();
$ u3 D, u% R. Y. m4 K0 d2 \ - if(upload.status == UPLOAD_FILE_START){
5 b {4 o9 o6 V0 ` - Serial.setDebugOutput(true);% m4 T% j9 {& }
- Serial.printf("Update: %s\n", upload.filename.c_str());
- E! e; a4 N; Z3 ?2 k i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" @8 n( g; E' w" ?* ]7 y - if(!Update.begin(maxSketchSpace)){7 b( Y* h8 c: H8 w# t& o0 D/ r- J
- Update.printError(Serial);, m O, [+ d Q% ?9 j: x4 @
- }
! x4 q, i' h3 b - } else if(upload.status == UPLOAD_FILE_WRITE){
% M* P! U j l& _ _% i; _ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. }; @# E n* H, X: i" w/ e4 p
- Update.printError(Serial);
' l: v, y3 v- l& z - }+ L3 @0 J$ X- w2 l6 n$ g
- } else if(upload.status == UPLOAD_FILE_END){
/ z8 m: D3 G4 Y: m - if(Update.end(true)){ H; N7 t. D1 b9 F/ _( l! J
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 P& O; h" U/ c/ @5 V - } else {
% G' Z2 U2 k s B( m# _. c3 ^ - Update.printError(Serial);1 O) v; i0 e0 w6 L; E/ G
- }
- P7 _( i: e0 d" V - Serial.setDebugOutput(false);7 y' g4 y1 M& R5 k, X5 J
- }: ^; d* P* d9 k" Q# y9 J
- yield();; ?% ?% S k! M' {/ A# d
- });) E5 k4 W2 K+ _: H9 ^, f
- : k) o! Q( ]; ]0 t
- digitalWrite(2,0);
# B& Z$ @# @# R* B+ U5 u0 O* s - mainAction();
/ A5 ~# Q+ J! A5 F - if (digitalRead(0)){
4 B& R8 i1 a/ _0 Y& u) P - ESP.deepSleep(0);
" @( q. e. K5 _& \7 x; p - } else {6 _/ q2 I( d! S1 c( V7 L S7 a
- server.begin();
+ ?* { |! _3 I9 w% |. w# r/ s - }
, V1 ~' R# c V/ y% c6 G+ m7 O4 I5 b - }
( W( ~ y; K3 W" H( T - void loop() { }( H6 g% H! S$ [+ x
- server.handleClient();& _& ?1 x) z9 i" O/ x G
- delay(1);' g1 n9 o% S9 D2 j% [+ |
- }
9 b& Q; A8 D& [2 [ - String doGet(String url){: Z1 ?" X5 t. B( I8 s
- if ((WiFiMulti.run() == WL_CONNECTED)) {# l. r( {7 R; d0 Y2 \
- HTTPClient http;, ]( r; \9 _! A% f* n! |4 |- [& G7 s
- Serial.println("[HTTP] begin...");( n& T3 A1 N# A/ p; W7 I: T
- if (url.startsWith("https")) {
# [5 n. \' B% X0 P& V/ R: }, L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; ?1 O/ ~; m) A- m0 `
- } else {& C; R/ ]5 ^- I: j. ?: k! `( b
- http.begin(url);
8 Y: P2 t, i* k- F/ ?7 Q. J" q - } O) m+ m) \( g* P& N e' E
- Serial.println("[HTTP] GET...");. a8 ~* F8 K2 L& k" R, L
- int httpCode = http.GET(); [: B8 W: L- M) e B. R6 \
- if (httpCode > 0) {$ U* |6 }" x. g) b, ]( u7 C0 P) U, ~
- Serial.printf("[HTTP] code: %d\n", httpCode);
% F) k f, j7 [* }/ [1 ~ - if (httpCode == HTTP_CODE_OK) {% ]! d* g" B' M9 B0 y e
- String payload = http.getString();
% M2 @2 j7 }, I5 E; r5 x. O8 c - Serial.println(payload); J; P u" E1 o X4 m/ ]0 p1 j
- Serial.print("\r\n");" p7 e. M2 f- z5 E0 g( [3 w
- return payload;5 D9 C/ h5 }' i: j& u
- }& r/ `* g/ S( ] F. O9 L: ?, }; T
- } else { s$ g k8 O7 q5 i# y% E
- Serial.printf("[HTTP] GET... failed, error: %s\n",. c2 X6 I5 a3 a# h
- http.errorToString(httpCode).c_str());
0 w: I' b" }/ _ - }0 R8 k; I- g& i0 j2 D
- http.end();7 K3 K) `, N: z) `' d% i
- return "";/ n, B( `2 ~; `$ ]+ l t# |8 M
- }
4 u8 e8 S) B- ?. y8 { - }
+ I" n% L; S: A9 W/ E( x$ I: a; y - void mainAction() {
% K8 I9 f7 }& w8 ]8 z - // 发送请求
; o% b/ p1 B" Y. g% e4 z. O - doGet("http://google.cn");
/ T* ?1 z: W1 h$ S. Q+ B' g - }
" K5 Q+ K8 @+ ?
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