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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)- X1 W9 w& G o
- #include <ESP8266HTTPClient.h>
( y/ E. H1 s( M; b! r1 V5 B* i - #include <ESP8266WiFi.h>
J g# R' ^# t2 \- _7 [; ^- C - #include <ESP8266WiFiMulti.h>- l2 g1 r0 q- M& o' X# L+ J! y" U$ R
- #include <ESP8266WebServer.h>
* g4 h) g% a& I6 F8 \& Q - #include <arduino.h>9 v: ~2 w: K9 y; d3 z
- ESP8266WiFiMulti WiFiMulti;/ E( z: ]/ _3 G
- ESP8266WebServer server(80);
; y$ }( c0 w, V) ^+ V/ H0 X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, U; }$ i" |1 ^- @+ I& B - ADC_MODE(ADC_VCC);
$ l1 b5 n. e2 m9 ~' s - void setup() {
$ Z- w- w+ `+ ] i. o- l/ a$ P$ N* D - Serial.begin(115200);- d' \# O$ {. {* v g
- Serial.print("\r\n\n");
. W/ L4 P) X6 Y3 j# f7 Y* S& i - pinMode(2,OUTPUT);' s7 q. ~5 x( b' v% A, v
- // WIFI
( |, h: y' x l; ? - WiFi.mode(WIFI_STA);
6 x3 i3 }) v- ~ - WiFi.hostname("Sparkle");
( B9 b5 ?& C& M0 b - WiFiMulti.addAP("wifi ssid", "wifi password");' {4 @; v5 m/ }8 n+ H
- int tryNum = 15;! a3 |9 i& Z+ o) \8 ~
- Serial.print("Connect WiFi");3 M, Z2 T3 x7 r4 F, s
- while (WiFiMulti.run() != WL_CONNECTED) {
- q2 I# m+ g, j$ a J# z - digitalWrite(2,0);
' Y7 U4 m6 j2 ~' f - delay(200);
9 y g, y7 Y$ V, [ - digitalWrite(2,1);
; T" X/ c9 {, Q% p - delay(300);& r! i) @0 \0 q
- Serial.print(".");/ l, w# w+ B# {: _+ V& j% l6 ?
- tryNum--;( I7 @+ w6 o, F- E' _
- if (tryNum == 0) {! Z5 P4 f2 \- y% f7 {
- // 1min! N0 s! ^3 P$ ^. A$ s. y1 y3 b
- // ESP.deepSleep(60e6);6 [8 o: ~3 a; k
- ESP.deepSleep(0);9 z" G/ l3 k5 Z: {2 ~& U, _
- }; E( C: }) u( E. ]+ L5 v4 D% `
- }8 R3 `; A" d4 z6 ^) p* m1 t8 L
- Serial.print("\r\n");
5 s5 j5 k( z. v X2 s m# s - digitalWrite(2,1);
3 ~% _( e8 c$ G. s' j0 _ - Serial.print("IP address : ");" v# m' ~5 o4 v$ _! f' E4 g+ j
- Serial.println(WiFi.localIP());
3 [ C/ i1 ^4 l2 K. f' d - server.on("/", HTTP_GET, [](){/ p* _# Q" `, G+ I9 \
- server.sendHeader("Connection", "close");$ b5 `8 o2 ~* ?: ?' [/ Q3 \( g
- server.send(200, "text/html", serverIndex);" F% W. j" V1 s9 d- S
- });
, S# P2 c' B- y% R3 p! V - server.on("/update", HTTP_POST, [](){+ h9 \* ~4 m# q$ v; C8 j
- server.sendHeader("Connection", "close");6 L7 S- F1 M) c5 p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 o5 Y# E3 n9 _( V. _6 j - ESP.restart();
6 B# V7 f0 H, g0 }: D7 E3 I. k - },[](){. x4 d4 n1 A2 y% Q$ |. d A
- HTTPUpload& upload = server.upload();" x) ~% L0 g3 c& ?
- if(upload.status == UPLOAD_FILE_START){9 J; `3 g4 ~, ]+ u
- Serial.setDebugOutput(true);$ k6 n4 ?0 W1 S8 y3 ~
- Serial.printf("Update: %s\n", upload.filename.c_str());1 U# X3 [% @3 k! o; e+ M5 E
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) w+ R2 N R% m& o3 b$ V - if(!Update.begin(maxSketchSpace)){' I" K* b: @6 p
- Update.printError(Serial);0 ]$ w/ O# l* S
- }- Q; d6 L" g. Y8 M4 R: B
- } else if(upload.status == UPLOAD_FILE_WRITE){( @, `3 v4 p. E' e, q! l2 z1 g4 h
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% ~8 b& I* `& e2 R) c$ }7 }4 D3 f
- Update.printError(Serial);
3 m2 I( g2 s+ i z* m: k6 f' J6 z - }7 Y+ { S9 Y/ |9 @+ J. e3 u; h: f6 m
- } else if(upload.status == UPLOAD_FILE_END){
$ g C9 B4 _ r2 v0 U% y& g2 O - if(Update.end(true)){ G1 A) e5 W3 n1 ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 F) n* D- L$ O2 ^: [
- } else {, M, V( T7 s) y7 z
- Update.printError(Serial);1 W; A' }+ n' M% Q* N
- }$ Y" \. ?( |$ {9 ]: G( ~
- Serial.setDebugOutput(false);
C, u% t: n* ]- b. [1 a - }
2 _- X3 \; B0 u1 C: ~ - yield();
. t8 {' k! V0 T, y( ~% Y1 a - });
6 ^8 d& f* d! M: R9 x0 @1 ^ -
; K" P( g, Q! ] - digitalWrite(2,0);0 X; {, f. p! t F3 c
- mainAction();
* d" ]$ i8 n1 X$ b3 g* L3 F - if (digitalRead(0)){
/ E; {9 \ S: |* A" C - ESP.deepSleep(0);% E5 s) _/ H! m9 f) |
- } else {5 V' b% u' q* `1 Z( V9 B& f, a
- server.begin();- O0 \: U5 I. v% o, }! W+ @
- }5 t) E7 U( h0 p$ R. z d7 `6 ?3 b
- }
2 {8 h( U8 Y4 a" R2 ^; |* R - void loop() {
) X8 ^5 F* @; ]$ `" w8 o4 H' c - server.handleClient();' A- e# U) ^! y/ Y
- delay(1);, Y$ ~9 H0 R5 H) F3 O
- }6 L, u$ @% K- f! b# N' q( O, F* K
- String doGet(String url){" V' L$ F% S$ C- h0 {1 G& o, Q
- if ((WiFiMulti.run() == WL_CONNECTED)) { X$ O6 i/ ~; r' D' O% b: s
- HTTPClient http;& y0 v. s2 _) V8 m; d
- Serial.println("[HTTP] begin...");
/ M6 R! j4 a8 ?0 | - if (url.startsWith("https")) {
0 z# }! e/ `1 E, H - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 K0 u* {0 J. g3 R - } else {% I- T4 ^9 K Q' W. R
- http.begin(url);
$ r6 j% @# a- ]& T - }
- n5 Y, e1 t+ d/ C' h - Serial.println("[HTTP] GET...");
I6 ]+ K3 @7 l& _+ i - int httpCode = http.GET();
5 v4 o6 @) n9 w5 D" P9 o" T - if (httpCode > 0) {
% h# U9 W- S& j, Q' z - Serial.printf("[HTTP] code: %d\n", httpCode);
! G' c9 E, l( Z; u' h8 _6 m - if (httpCode == HTTP_CODE_OK) {* e$ ?, A6 [; a q
- String payload = http.getString();4 Q* b+ k h; k* k' V3 m
- Serial.println(payload);: v7 d" _9 j1 X/ E
- Serial.print("\r\n");
: @& L5 }) G( g6 [# ?" h - return payload;
& I9 {1 @. n4 S& h - }" `7 F. O- z$ [
- } else {
' w. c3 x& b# q z+ k) Y - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 z9 h( r" `' i4 l4 F2 x8 I - http.errorToString(httpCode).c_str());
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- http.end();
. X& n( a# k R6 x* l( p - return "";
& L' H& H8 j# E$ R - }! l+ b0 c h: q$ N5 l, Q2 n' ^
- }
5 x) f Q. t- @( U% V - void mainAction() {
. ?, A Q- \: q- w$ c( a( _+ F - // 发送请求
9 G' w: ]; f3 n' Y8 e+ U - doGet("http://google.cn");
2 }$ Q1 B2 \6 t$ q0 Q - }
. ?8 G8 l; F. Y, U6 u+ G! ^
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