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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)
1 q/ r2 t+ ]! x: y" }9 W. v+ b- #include <ESP8266HTTPClient.h>
0 Q' i3 G" P: }8 S- _7 V - #include <ESP8266WiFi.h>
, q6 }4 [: _ P( `3 C - #include <ESP8266WiFiMulti.h>
{" Z% a2 g% O4 C e, {, ?3 y - #include <ESP8266WebServer.h>
; w5 |% D" I2 v3 a7 S: j i" _ - #include <arduino.h>
7 ~9 z6 d7 _' j( v9 z6 T. B! R - ESP8266WiFiMulti WiFiMulti;$ R1 O1 C: p0 \" v, O) s4 {3 X
- ESP8266WebServer server(80);
# N3 r0 u+ A' n, t8 v - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
F2 m3 n% l& [' ]# j% X - ADC_MODE(ADC_VCC);
* a& z4 \# M" j! z9 x9 M4 L& e# Q - void setup() {$ E# |( ]# |& C
- Serial.begin(115200);- y" K g; q: r4 E
- Serial.print("\r\n\n");
( D o, }: w- z$ C$ ~ m' y - pinMode(2,OUTPUT);
1 `4 P, f* C+ d5 s - // WIFI" }8 s' O/ `( ?( B. O! c, i! j
- WiFi.mode(WIFI_STA);! v2 r* B. `0 S! s9 H/ B& X; I/ w* T
- WiFi.hostname("Sparkle");
+ \3 C* F! _7 ? - WiFiMulti.addAP("wifi ssid", "wifi password");
R! O* Q7 p/ Q - int tryNum = 15;
e& l: t. |8 z7 q! G - Serial.print("Connect WiFi");
9 F9 r5 T9 a5 q% P - while (WiFiMulti.run() != WL_CONNECTED) {
+ Q4 r! e2 N$ p' D1 O- o: i" L6 @ - digitalWrite(2,0);
6 J- I9 h3 x6 z+ z - delay(200);
; y, X; a, q* e0 s3 L9 F$ ^/ _ - digitalWrite(2,1);% q* q* m# \6 L" [
- delay(300);- e) c: S) @" ^- l
- Serial.print(".");8 r q4 n7 b" N, q3 B
- tryNum--;6 k% D9 \* D9 A+ g8 H
- if (tryNum == 0) {
: a9 v. F$ I5 ?6 {8 }! [/ m - // 1min
# z8 l: F/ }1 q' k: l - // ESP.deepSleep(60e6);+ I' F4 U" ?0 m+ i! X
- ESP.deepSleep(0);
9 B) i Z. N7 V( G" {- x - }
$ K/ D$ f1 X3 F& v$ W+ U - }; W7 ?8 \. q: [) K5 @3 }9 s3 r
- Serial.print("\r\n");* V9 ?" q2 W H f) Z/ O( ^" W
- digitalWrite(2,1);. P: D0 C X+ t
- Serial.print("IP address : ");
2 z' L$ B% v- V/ d | - Serial.println(WiFi.localIP());
! x( |7 i( s8 b2 }/ ?; d - server.on("/", HTTP_GET, [](){0 m; C7 E2 m/ d
- server.sendHeader("Connection", "close");; i" B- b. _( E/ J0 x0 x) p+ |
- server.send(200, "text/html", serverIndex);
& J" h! S; i" Q* c& X3 J - });
! |3 u2 f$ q( G - server.on("/update", HTTP_POST, [](){
6 ]3 y. a$ n8 J+ g, _) E. e4 t0 R - server.sendHeader("Connection", "close");
! u$ R0 j' a0 s* O6 Q. ?* Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 T4 a5 \8 i7 G. I+ ^4 N - ESP.restart();
3 [3 l- r2 A' ~7 N) q% ? H% p" G - },[](){& ~% o4 a$ Z5 |7 W) z
- HTTPUpload& upload = server.upload();/ B$ P7 \$ p2 ^; }
- if(upload.status == UPLOAD_FILE_START){
9 \" k! l/ B/ C- _ - Serial.setDebugOutput(true);, x+ U# {4 w5 B: L0 b' S9 ~' R/ ~! k
- Serial.printf("Update: %s\n", upload.filename.c_str());
- p8 n1 N+ O: _: X4 O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! V& z+ L) h7 D7 Y
- if(!Update.begin(maxSketchSpace)){. v0 P" S9 B( m- i
- Update.printError(Serial);
& q0 }/ N: d* W/ M, t& p - }
% w2 D9 p6 X5 r - } else if(upload.status == UPLOAD_FILE_WRITE){
4 Z H V) R e* e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) s/ T$ G5 M' z3 ^ R- v4 d - Update.printError(Serial);
. V) Y" ^2 h6 z1 J _ - }
& q/ l; b( Z+ \; { - } else if(upload.status == UPLOAD_FILE_END){
+ G8 U' N8 v0 J - if(Update.end(true)){
. N |! S8 G7 X6 f) j, Z: Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* ]5 Q4 q5 I1 a) z6 H2 r
- } else {
; ~# z f. T3 D/ K - Update.printError(Serial);" n' _# Y3 D2 m1 p$ B( D3 b3 [
- }
, N; M% F# A5 N" K0 _" u9 Z& | - Serial.setDebugOutput(false);
% ?, M2 y( G' E3 P- p7 G - }; Z0 r% [- y; i% R1 @
- yield();
" p Q2 R, I8 [! P( e& v3 @+ F - });, K' m: d- F6 @
-
9 p5 A. Y2 q( [+ ]1 T4 k( Q' O3 T2 o - digitalWrite(2,0);- A; V Y8 ]+ H0 i# P2 H
- mainAction();
0 I- K2 m' b y - if (digitalRead(0)){% ]8 K1 D. y! V6 m. y5 w* o; ]$ {! V% U( H
- ESP.deepSleep(0);7 ?2 a) @/ C8 P' i7 i
- } else {
, N( }% O0 B) \" s V8 | - server.begin();
; \" N) n7 `8 q! P - }
4 y2 o; ^; E* i+ b+ g5 y - }, B" \7 x; D! p7 A: ]3 w
- void loop() {* Y( Y( a. d9 g7 j
- server.handleClient();
4 ~: Q% D# B" T8 T - delay(1);8 X% t$ E; ]4 x+ S. _
- }! {# E D, m R) p
- String doGet(String url){
2 D5 H+ t* J, ]. {7 D0 i - if ((WiFiMulti.run() == WL_CONNECTED)) {- h+ b- b# P4 s. R! `
- HTTPClient http;
+ u) \$ a u8 K0 Q* Q: ] - Serial.println("[HTTP] begin...");3 C1 R( X* \2 q4 y; b3 e
- if (url.startsWith("https")) {0 g) `+ `, e& _) ~0 \) s
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: u/ l9 j% O' M3 L5 U* D
- } else {
1 W4 Q) ] U) v4 ^" j* s' D: i - http.begin(url);
1 ~4 z& R3 C: t \ t9 _ - }
5 h5 b3 \& a: I c - Serial.println("[HTTP] GET...");
& a7 X) k# G+ d$ } - int httpCode = http.GET();
) _/ s; w/ c$ l3 ~9 \ - if (httpCode > 0) {
( o' x5 k, Z. i - Serial.printf("[HTTP] code: %d\n", httpCode);
+ J2 b0 |0 Z, } - if (httpCode == HTTP_CODE_OK) {
z' F) G- ], g/ @ - String payload = http.getString();0 J; ^2 O0 b% T8 G/ T
- Serial.println(payload);* S% A; h2 g( N# S
- Serial.print("\r\n");) `5 f2 r' U$ G5 e0 x/ X# I
- return payload;' i+ }, Y) A6 ~
- }
: B' L6 m( y/ }& ^, X ~ - } else {8 c v, B7 K8 ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 @+ R/ p# { N3 T( C
- http.errorToString(httpCode).c_str());
1 p0 j, f' U0 n1 N8 Z - }' K: ?9 W0 x- q8 A; N
- http.end();
# `0 I, G( v+ s% Q - return "";
9 E: }5 W) D3 U2 Q% @) }. t - }
' N N. e% h3 P; A5 p9 J9 [) u4 W1 l - }7 H' ]! l6 M b( B/ {( O8 @
- void mainAction() {
4 f- U1 |$ _8 A8 Q - // 发送请求 n/ x( l6 e/ C! v3 w/ ^
- doGet("http://google.cn");
+ _6 k* J6 f, i! y - }% h6 I6 R" N" @3 L. T
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