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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)
" i+ D6 ~: Z* b: t4 P- #include <ESP8266HTTPClient.h>
0 p9 P) k# q3 L) h3 y - #include <ESP8266WiFi.h>9 g$ w) \6 @3 c& N; q9 `3 \0 Y$ k
- #include <ESP8266WiFiMulti.h>, E: V l' I3 g! v" S. A
- #include <ESP8266WebServer.h>
4 \$ v$ f: w+ s - #include <arduino.h>
' q2 B! [/ J! v0 S! e" U( h - ESP8266WiFiMulti WiFiMulti;
+ P Z5 q& }0 H% Z' p - ESP8266WebServer server(80);
0 g2 w4 a/ H; R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 }9 K4 r" l# p- [* d* c
- ADC_MODE(ADC_VCC);* o: v: T: w7 ?
- void setup() {
% N# }4 f# d% H* N - Serial.begin(115200);
! q! O& O/ J0 P% Z t: w5 p - Serial.print("\r\n\n");
5 ~8 M) w8 s" U. O - pinMode(2,OUTPUT);5 S1 r5 }, @6 o! {( q3 r
- // WIFI2 [* T: k8 R" m$ ^6 N! l9 r
- WiFi.mode(WIFI_STA);1 S% i: s/ I7 j2 Z
- WiFi.hostname("Sparkle");; R3 o+ Y% ? j9 }
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 M4 O& Y9 J: w( n, [ c - int tryNum = 15;7 d! W1 i$ g, s4 Z9 ~8 `& {
- Serial.print("Connect WiFi");
% s! l( W% R: H( r1 M) D: v6 @ - while (WiFiMulti.run() != WL_CONNECTED) {6 M1 W( ]- y* {6 N. i* [9 N7 b
- digitalWrite(2,0);
% v6 C, }) r2 Z! ^) D* K - delay(200);
5 K& s2 N. b0 x4 v% T1 B8 F6 M4 g - digitalWrite(2,1);- Z& K. @& f0 M! N. ]. Z
- delay(300);! X1 g6 d( j* Z% S- a
- Serial.print(".");/ I$ s6 w0 q+ s% @$ J5 k- `) r( Y+ y. L
- tryNum--;6 ~# N4 U4 R. V/ Z& H0 l
- if (tryNum == 0) {
: U6 k: i$ S9 }" y& I+ r6 [ - // 1min! } w, d2 p6 w* D W9 ^% w8 T
- // ESP.deepSleep(60e6);7 a# [$ M1 E h9 f
- ESP.deepSleep(0);! ]" p3 h$ M! ?2 I' N" o
- }
% i: c6 V) a! e7 s8 T; a - }' a' r1 b$ ^1 }" S3 N
- Serial.print("\r\n");
% E5 ?8 r- @& l$ i - digitalWrite(2,1);% V5 \" W# ~8 E
- Serial.print("IP address : ");, h- b1 f: j$ p/ B/ _" H
- Serial.println(WiFi.localIP());& q! @& A( X& K& z1 N
- server.on("/", HTTP_GET, [](){, j5 R# t6 p# A' r+ Z0 H
- server.sendHeader("Connection", "close");6 A5 C" d# K* f( r' g/ w8 B7 R( h# F
- server.send(200, "text/html", serverIndex);
( p2 \* W- n" o6 M |8 d - });$ U1 | W# g$ P7 C6 a9 E7 o6 q
- server.on("/update", HTTP_POST, [](){8 R" |" [+ D o I
- server.sendHeader("Connection", "close");
& V" t4 O0 Z9 ^/ j( N0 F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 u! v2 K2 q1 s8 @0 S) T, I - ESP.restart();2 I' W$ o& r+ \# ~ \
- },[](){. I) E9 b7 D* `2 I1 G. Z5 T
- HTTPUpload& upload = server.upload();6 E) x2 h* M& B1 k, L
- if(upload.status == UPLOAD_FILE_START){
) r4 z0 i2 l3 A. k7 _ - Serial.setDebugOutput(true);
% o2 T7 W g* r* e6 J - Serial.printf("Update: %s\n", upload.filename.c_str());
1 u5 Q3 ^# x1 E8 \- m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 d* o0 P, W" t* q) @9 Z
- if(!Update.begin(maxSketchSpace)){- b2 Y- d5 v8 k/ e
- Update.printError(Serial);
* F" v6 ~! | S5 b4 \8 D, k' m - }
9 M( _/ O) P' _& |4 p: O - } else if(upload.status == UPLOAD_FILE_WRITE){
" T$ B9 y' G1 M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& f7 C$ L2 N& a - Update.printError(Serial);
( ~7 i$ `% P. f! _: {% R- W - }" Z* ^6 U+ L* `, {& ~) c2 n! q7 t# s
- } else if(upload.status == UPLOAD_FILE_END){
* `; m* |- t6 ]$ e; ^" J, f4 t - if(Update.end(true)){
" ^: j; b1 S% r* X2 ]! @6 ~ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 @% \' ^5 W- j) o6 z* F
- } else {
! [6 W. y( p2 l - Update.printError(Serial);
3 F; z" Q. k" G - }- M2 S1 g9 g$ Y Z+ p2 v
- Serial.setDebugOutput(false);
: Q: K5 R" Y n - }
5 A/ M3 _. E& q - yield();
; l o1 Z9 D; W. V - });$ P( K5 K( c7 Z5 ^% U1 ?
-
2 ]+ v3 L) i6 ?, r3 t. P - digitalWrite(2,0);4 n% i2 m7 j! c/ c
- mainAction();! `$ U; W3 H# j: l
- if (digitalRead(0)){
. D) s( S6 L3 P# q8 o. e - ESP.deepSleep(0);
_' O: N* _6 P- j/ b, m - } else {$ y. X6 u5 z6 a. |7 u4 m8 {
- server.begin();8 w- O, g4 @7 H& p' a' Q
- }
. O" c" f; j1 J# Z - }
" E5 B3 {; A5 M" { - void loop() {$ l( c5 l0 w5 X* K, U1 L1 [
- server.handleClient();. A& V& z: s9 Z; T5 M
- delay(1);
8 [8 C0 Q; b; n! p! k7 M A- Y/ E - }
?' G$ z# H: w9 M - String doGet(String url){
+ W' {' k- D/ u1 ?* r - if ((WiFiMulti.run() == WL_CONNECTED)) {
4 o% A/ p [( p7 [# F& H' |1 c5 F - HTTPClient http;
8 v, i% w/ n5 @" U' D5 d$ S1 R - Serial.println("[HTTP] begin...");
6 Z) ~2 P2 H: z, n - if (url.startsWith("https")) {& [( P* o& M1 N2 K' P" {; H; u" h
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); c v. o3 D0 d9 m2 H: V3 U7 i
- } else {
* e$ }7 @. O# L6 z - http.begin(url);" l( h8 }( h. n- t' ?8 o
- }% H4 p+ H, p4 n4 e2 g& d
- Serial.println("[HTTP] GET...");
8 C; n% r, W. ^ - int httpCode = http.GET();+ U1 }" s- ^/ K8 N0 b& W
- if (httpCode > 0) {
+ e+ x3 {1 Q# K) M, X - Serial.printf("[HTTP] code: %d\n", httpCode);! Z* ~7 o& ?! G! W4 S- B: o3 g
- if (httpCode == HTTP_CODE_OK) {8 @) V6 f0 F) E* ^
- String payload = http.getString();
0 U. v( g4 h$ z0 _% s - Serial.println(payload);
7 \* @$ W) ~0 g {" }; A - Serial.print("\r\n");" C) r0 \' s# @ L( @0 Y
- return payload;7 c/ @" y& i" e
- }
& e! `) K, _2 L+ @6 K0 i \4 o0 J - } else {
$ T+ a U6 m7 Y4 j- F3 J! C, A - Serial.printf("[HTTP] GET... failed, error: %s\n",+ L+ T& V5 I# `% Z
- http.errorToString(httpCode).c_str());
$ o) v8 Q2 P- [/ x9 ]/ p: K - }
/ A8 u5 p/ m+ g {$ [% {7 \ - http.end();
, P" T& i& Q H4 a* i/ j - return "";
+ S+ q3 T. {+ @& w6 Q3 v8 G - }$ x _+ z# t# H5 V
- }
; x" k! A* y4 t. D/ Z0 h: N - void mainAction() {! m. G; L+ w( K( u- Q7 \
- // 发送请求2 n: A" l" J, E+ }5 S
- doGet("http://google.cn");
5 U% G, w5 u) s* l3 D9 x - }
: g. M7 y* u7 [
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