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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 o7 l+ x; C# H$ l- #include <ESP8266HTTPClient.h>" P! D( J/ S6 R- C; P
- #include <ESP8266WiFi.h>
+ Q f1 j+ e( w1 j$ n# V - #include <ESP8266WiFiMulti.h>2 X; M+ r0 g- Y* t/ W" r `
- #include <ESP8266WebServer.h>
$ @# Y2 k' f2 B/ q - #include <arduino.h>6 _7 B" [: f7 A" B/ p, p
- ESP8266WiFiMulti WiFiMulti;
8 G2 A) j4 _' q0 E; _6 l; A - ESP8266WebServer server(80);
) Y9 T3 s7 z# M- v! a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% Z0 U% q" X: |6 s - ADC_MODE(ADC_VCC);9 n7 c" u/ r, V5 ?" q+ [1 j3 [% r$ P
- void setup() {. L/ j o9 E6 `+ J4 @! {5 V
- Serial.begin(115200);7 G" g* E9 I8 B# b, h
- Serial.print("\r\n\n");0 V8 j* t, k5 X
- pinMode(2,OUTPUT);
6 [7 B1 @ A ^. b4 K) g1 | - // WIFI
/ ]( [0 _0 U2 T8 V - WiFi.mode(WIFI_STA);8 _* V# ~5 [ M7 u; Q/ P
- WiFi.hostname("Sparkle");
' X) w6 T4 K% z _ - WiFiMulti.addAP("wifi ssid", "wifi password");
) R7 g, d/ p% k9 L1 g2 j - int tryNum = 15;1 R( k7 f/ F P! v
- Serial.print("Connect WiFi");- b6 E) r+ c- ]" A9 P8 {) V
- while (WiFiMulti.run() != WL_CONNECTED) {
1 Q/ b# y7 ]& E( @) a2 d* H - digitalWrite(2,0);- x$ Q: _, }" _
- delay(200);
& E8 a/ k; Y7 z4 H# { Y# E# V - digitalWrite(2,1);: Y9 \9 @& J: F9 G4 h
- delay(300);4 ~. L1 ~ i$ c+ [
- Serial.print(".");
0 L: s0 S. Y/ C - tryNum--;
+ e; l0 \8 a4 o# U7 [ - if (tryNum == 0) {
. [- e0 {- a: | - // 1min
$ t0 W2 o0 k( w0 Z$ [5 o, p* j - // ESP.deepSleep(60e6);
- B# [4 q! e" |6 b }" H$ d - ESP.deepSleep(0);
$ q7 R- B& ]. `3 K - }8 h% I7 X* K: F$ u; V
- }
: s% b! p( w8 z6 Y - Serial.print("\r\n");" p9 d+ D4 |2 W3 [
- digitalWrite(2,1);
1 D. p$ j9 j( v; u1 B5 W( G - Serial.print("IP address : ");
* L9 D& |$ `+ b - Serial.println(WiFi.localIP());: n3 ?3 n7 ]7 R0 R
- server.on("/", HTTP_GET, [](){
* s ]- Q2 U7 N- n# ]6 a L$ ~ - server.sendHeader("Connection", "close");# x, F0 a! `$ c6 m4 m( K
- server.send(200, "text/html", serverIndex);+ O: G; o1 G7 w) L
- });7 p4 C X. Q/ z! I: f! _( o
- server.on("/update", HTTP_POST, [](){" x+ }' f. x% E8 C6 K$ N% G
- server.sendHeader("Connection", "close");
" r9 c( p, B& O8 ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 A9 b* h& S) S& F* L - ESP.restart();
% ?0 ?' Z% k. j8 a1 f: l - },[](){
& } r+ Z9 {* r - HTTPUpload& upload = server.upload();( m1 o0 p4 ?5 E: Y; S! N" Z
- if(upload.status == UPLOAD_FILE_START){# Q ?, e$ E! ^2 d" v. I' U
- Serial.setDebugOutput(true);1 _1 ~5 [1 |3 I% x O
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 `- c7 m; N- L5 u( v, |; p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 f O: K& w ]: m' {/ F" ^( U - if(!Update.begin(maxSketchSpace)){
! U; B! o/ C+ l) A - Update.printError(Serial);
1 N+ c( C- @( K4 j* ^1 T7 r/ ?$ A - }
5 \5 E9 M( R! [- w# B* r; F2 F - } else if(upload.status == UPLOAD_FILE_WRITE){
}3 R' m$ x5 r+ p# e# v: V - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ w5 U/ H( x4 s - Update.printError(Serial);- L* K; k$ A% R
- }* \9 L1 {+ R4 [9 q! F9 m
- } else if(upload.status == UPLOAD_FILE_END){
% F# v3 Y% t: ]4 z - if(Update.end(true)){
# `2 q* y; r* n# \5 V- V/ J* T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 ^9 l1 A. G$ u; k0 U8 o2 `: E, T - } else {
- ~+ U$ V/ W. {# x0 O& w% r$ t) p - Update.printError(Serial);
0 H1 `* \5 }3 c6 F - }/ {! k. l& h6 y) ]0 z8 E- }7 k
- Serial.setDebugOutput(false);7 O; E* S0 ^6 U
- }9 B: D7 P8 R! A/ P5 i9 F& w
- yield();
$ }0 e0 \2 R/ ~2 O7 ~ c3 _; Z5 i - });; R5 [; U& P5 H8 }
-
& `2 ?, n& {8 \ - digitalWrite(2,0);
! t; f" a2 ?' ^ c) F6 g2 u. ~+ q - mainAction();* I5 D6 Y& R( A! B
- if (digitalRead(0)){3 F8 h9 x: j9 G; Y9 G
- ESP.deepSleep(0);
1 q% z" ~1 Y3 v - } else { d$ F4 q- N' Z" W7 k
- server.begin();
0 }; ]; `+ u9 [& p2 ? - }3 ?! q# m0 I+ a1 }& k
- }
- f/ r. A7 x9 X3 L: Z - void loop() {$ Q L0 A" m$ i. v5 T
- server.handleClient();
* [& Y; w& a) A V* C3 G. [: f - delay(1);
4 d' G# {9 @: I0 V5 v - }& U8 V! L6 [2 w6 y. ~% \
- String doGet(String url){
) i$ l- e9 b, {- P - if ((WiFiMulti.run() == WL_CONNECTED)) {
, t9 k" {. _5 ]) ~6 B - HTTPClient http;" O1 o& U1 L# s5 L% ]7 H
- Serial.println("[HTTP] begin...");
/ D3 W- `- }1 j# \0 ^; r; e - if (url.startsWith("https")) {; F# t4 q- v4 y& }: Y2 R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 E$ j- U5 b. ]( [1 S
- } else {$ Q- J& N2 V$ x8 I
- http.begin(url);, J6 }. I' h4 A- b- I0 k& Z
- }
4 e9 y u. A; z; K - Serial.println("[HTTP] GET...");
4 f8 s, D/ _4 C. `& M - int httpCode = http.GET();
! R* C5 Q6 Z3 I2 `) G1 z5 M - if (httpCode > 0) {& D+ L! m, f: O2 j; [* h- p
- Serial.printf("[HTTP] code: %d\n", httpCode);
% r1 z( s3 }. E5 F - if (httpCode == HTTP_CODE_OK) {9 Y' d, O6 T4 N/ d4 W) y
- String payload = http.getString();
2 U, F! b, {' |- ]2 J/ {0 m - Serial.println(payload);
+ P( Z9 F; W9 c" t% E: z - Serial.print("\r\n");
* n' i; N, r/ E) U: X2 q: H: | - return payload;
3 A5 x7 Z* b8 T$ k; T - }
' [& g" {- [0 e+ u4 b - } else {
3 v Y, k. x6 m - Serial.printf("[HTTP] GET... failed, error: %s\n",
* k; n3 e1 ]# u4 M) Q' @ - http.errorToString(httpCode).c_str());) n3 {8 b- [+ ` E( w9 s( ?1 T
- }
- E% s1 @( a1 p* K* U& l3 \ - http.end();- B; ]$ |9 v0 p
- return "";4 R- V0 D0 h1 H2 c
- }, a1 Z' ~" N" n& `7 x: C
- }' W2 r# s# I$ h3 B) J& v G2 Z
- void mainAction() {
& g% @4 B% b8 o9 B6 u - // 发送请求
8 g3 U4 p( C, X# I9 K0 E+ F - doGet("http://google.cn");7 [2 Y5 P+ s1 X
- }
7 W) G" @2 q% k- N) }
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