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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)
2 T" W! U- j9 @& n# r' L) j% I- #include <ESP8266HTTPClient.h>
8 P# W7 p2 W- t+ }. h3 a0 J - #include <ESP8266WiFi.h>
+ F3 T! w% I) U% ?( p - #include <ESP8266WiFiMulti.h>4 ~ A$ O* j1 ]# i7 `
- #include <ESP8266WebServer.h>
' [% H+ l: x9 u+ j - #include <arduino.h>
2 f9 q% F4 f8 Z9 b" y0 B4 w - ESP8266WiFiMulti WiFiMulti;- r1 ?( b2 l* K ^. s* e5 F
- ESP8266WebServer server(80);
! O( X5 h2 S; O: ^! M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 D. z- H: z! i/ k4 x( C - ADC_MODE(ADC_VCC);
) F. f& k# j% D( l - void setup() {
9 ?( h+ w8 n4 Z, D9 \. X& a0 } - Serial.begin(115200);
1 @1 a/ A% u- w" Q; M# N( U8 l' m - Serial.print("\r\n\n");8 \7 I, I- h. k$ [' X0 M
- pinMode(2,OUTPUT);
! v' O! g$ `$ r$ A: r5 u1 H/ X- b' \% d - // WIFI
; t" k4 S+ K7 I - WiFi.mode(WIFI_STA);: H6 `% b4 e- b
- WiFi.hostname("Sparkle");) p# m" v0 o' H
- WiFiMulti.addAP("wifi ssid", "wifi password");
8 s( X/ x- |5 O - int tryNum = 15;
8 O1 @5 Q! }" b/ T+ X, x& e - Serial.print("Connect WiFi");/ B0 ^, F7 l+ e9 m- y+ f
- while (WiFiMulti.run() != WL_CONNECTED) {
' V! @1 D, T) U5 I5 z - digitalWrite(2,0);- R" W6 t6 [5 `& W' l" a
- delay(200);
) Q' D; q3 m; ]% h& p4 G7 d9 L - digitalWrite(2,1);
: |: R' O$ }/ y% j - delay(300);. x, c! I) {5 ?8 s- d
- Serial.print(".");* Q: C# H* ^ B* y! O7 e
- tryNum--;
2 Q! ~; ~+ f8 ?8 q& s% d - if (tryNum == 0) {5 q2 a: `" r" t9 E2 k
- // 1min
! I0 L" M5 A' P. j- P$ [) ` - // ESP.deepSleep(60e6);
0 f: H3 F/ l! O- B3 I: [ - ESP.deepSleep(0);
1 s! K" f& p& N" U* S, r: R - }
: F/ w/ [" ?# U( x! x H7 R; P - }
5 I/ U/ X( j+ [7 C# `0 D - Serial.print("\r\n");4 u R: N" l% h" r" W0 }
- digitalWrite(2,1);
6 w2 _9 g) Z! ^- v - Serial.print("IP address : ");
0 [0 @& _9 ?" c- G# Y4 A& K - Serial.println(WiFi.localIP());
* I) ^+ k& D" u: R& _4 V9 u - server.on("/", HTTP_GET, [](){
/ ?/ I( \3 ]4 Y! ]1 ~7 ^# f - server.sendHeader("Connection", "close");( i% B+ ^3 p5 g7 A5 g% ~: A
- server.send(200, "text/html", serverIndex);
+ o1 o' ]9 G7 w. I - });
8 b! t" v* S: o ]/ S E# C - server.on("/update", HTTP_POST, [](){
% B. M/ a+ R* @) U9 v - server.sendHeader("Connection", "close");9 [1 X Z, X' @, J! k5 `
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" p& B. g/ U; n/ K6 K& k: A - ESP.restart();1 [5 Q" {, N' Y) z* a) Q0 U1 p
- },[](){
1 f; |$ C" \( \0 H+ g - HTTPUpload& upload = server.upload();: \2 P2 S+ I; s$ l) S; o2 D" O
- if(upload.status == UPLOAD_FILE_START){
, Q. R, t; G1 `0 `" U) l" R" e0 ^5 D - Serial.setDebugOutput(true);
- N7 `( e. T2 O) W. z - Serial.printf("Update: %s\n", upload.filename.c_str());
# n: B7 m% u2 S3 X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 f" _5 k2 ^& l# ~ u' P8 n( ?* {% m
- if(!Update.begin(maxSketchSpace)){
7 M! m. n/ o. M* `- v- X7 D3 s - Update.printError(Serial);
; C; c. x3 ]0 x% | - }
0 m+ A* ^& D+ R: h: _ - } else if(upload.status == UPLOAD_FILE_WRITE){
3 I6 O/ m0 v4 `3 s- I- m4 H9 \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ X2 H5 d9 q8 F- M4 L- d% ~
- Update.printError(Serial);! S; K9 M# O- ^" O/ N0 a1 W( J0 r
- }
8 [* O1 p) r3 V6 o) U K$ k - } else if(upload.status == UPLOAD_FILE_END){
5 \' T) s) n: u8 n/ F - if(Update.end(true)){, S9 T) H6 }6 \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 N1 u: X5 y. |1 B: j, p; H
- } else {+ D3 ^5 I. ]& X7 Q2 p/ E
- Update.printError(Serial);
# u& g" z" b- }$ B$ }: `, i - }
! t9 t$ y& {9 e7 I& ?, j - Serial.setDebugOutput(false);+ i3 a+ D& B& S3 t3 e" I: M8 o
- } Q0 z+ O0 k+ v+ k
- yield();
/ z) @ k; p4 x* ]; R! u - });. k: k) R% o4 |
- ( w6 d, h" w: S1 Z/ y7 T8 c
- digitalWrite(2,0);5 C. T1 d4 F( g3 L/ C
- mainAction();
( `7 e' \ {# O+ q" C7 \ - if (digitalRead(0)){
1 g$ Q* @) k, z: e$ P - ESP.deepSleep(0);
* M7 e3 X/ |2 T- H9 D; S - } else {
8 X7 V/ n$ W h - server.begin();6 R/ |1 a% h2 m4 M1 r7 u
- }$ ~% M' r+ A( `) |; X2 | h: `
- }
+ O. T4 e+ L& h8 X3 E" P6 {# G - void loop() {
+ q; }( r# Y) {) \6 y - server.handleClient();6 A$ S/ y0 K, t- ^" j0 q! G3 ]
- delay(1);& F/ p4 C2 E6 Y4 g2 i* R8 B- L Y6 e
- }
7 k% G" ~, T; l7 o - String doGet(String url){9 P1 H; P5 t9 N. f8 a; w$ c
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ e0 ~: u5 k, B z# k9 V - HTTPClient http;/ c5 g" I) d8 @% J% |
- Serial.println("[HTTP] begin...");7 V" R: X4 j, Q1 u* B8 v$ C6 e
- if (url.startsWith("https")) {
! C6 B, B" `1 K# O2 T% p - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* p3 O# g! `4 D) ~: V - } else {0 r& Q- Y: @$ _$ G) W0 v$ Q
- http.begin(url);: I5 U2 i, Q! [+ R
- }7 O) j/ t* h5 Z3 \" t0 @. X" Y
- Serial.println("[HTTP] GET...");
& J: Q# l7 Q/ \8 T; ~( z - int httpCode = http.GET();( ~) o' Q) e3 a/ k/ O7 ?+ r
- if (httpCode > 0) {
R- B" K* x$ `) Y% s - Serial.printf("[HTTP] code: %d\n", httpCode);
8 I8 A' Q( R& [" F9 z, x - if (httpCode == HTTP_CODE_OK) {0 b7 b6 E7 L0 A( k- M2 D$ H
- String payload = http.getString();
# G$ G5 X3 S; b5 e- Y' Z6 P - Serial.println(payload);
0 T: X! s; H h0 a - Serial.print("\r\n");7 R6 C) {- V/ o) D& L- E
- return payload;
Q& z/ b: ?( u3 Y/ U. L+ d - }( @0 i: o$ X t" h+ Z; O
- } else {
7 q( Y# @/ \" J9 ^# f4 e& w - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 b7 |! q. q1 b# v3 d3 H4 T; t - http.errorToString(httpCode).c_str());, I8 X& M1 P" W q& l* Q
- }
. x6 ^ p$ b% J7 B( g! H, h - http.end();2 ~& U1 f) J. `( ]- B$ S U( _. }
- return "";
3 R3 t# Q) b/ S$ F% ]2 p - }3 @" H7 U. Y, J- C4 G( ]7 c S
- }
! ~! G) v# r9 k3 P" ~ - void mainAction() {
. ?+ q9 T- z& K( u [ - // 发送请求8 i9 \3 W; t8 g" B
- doGet("http://google.cn");0 J: P' Y6 G/ o* H: W
- }" f/ v' m# O8 u* Z( P0 c7 a/ G
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