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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)
`" |4 e) Y/ F- #include <ESP8266HTTPClient.h>9 o% m. b" W" V7 ~2 |
- #include <ESP8266WiFi.h>
5 o$ u+ o/ E" R. F! }$ K1 v - #include <ESP8266WiFiMulti.h> {# o0 u1 z, i! l/ d5 _; J
- #include <ESP8266WebServer.h>/ C' }* r& P$ ?- w
- #include <arduino.h>
+ p% k% I' v) K - ESP8266WiFiMulti WiFiMulti;
8 I$ p3 B& ?9 y. ?/ r - ESP8266WebServer server(80);
0 x2 N, I+ z t, I - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) }: C: A$ E9 p- l& J! O
- ADC_MODE(ADC_VCC);2 i5 X1 A' n% F0 ?% W
- void setup() {" j% J! K& P c- j
- Serial.begin(115200);" u6 Z4 r1 |9 y" h- \
- Serial.print("\r\n\n");7 k" S- u' B- r/ ^
- pinMode(2,OUTPUT);
8 W9 j- H6 h) G8 p, ]% n& H - // WIFI: Q3 H& h; b. w/ {7 x
- WiFi.mode(WIFI_STA);# @4 b# w* R. j( M
- WiFi.hostname("Sparkle");
3 v0 j. R1 r9 L( ^ - WiFiMulti.addAP("wifi ssid", "wifi password");
( U5 O: d7 I/ o" ^ - int tryNum = 15;* d3 h: y3 D( X. _4 A- R& K
- Serial.print("Connect WiFi");2 S1 Y$ Y M* z" P7 D
- while (WiFiMulti.run() != WL_CONNECTED) {, c: }4 B0 c3 ^- b# T) M! [; [; `
- digitalWrite(2,0);, J6 @ K% P3 }6 [! V9 U6 D" X, G
- delay(200);* n; m* @* K% G* X
- digitalWrite(2,1);
7 C7 U( G* Q4 }/ J: Z9 j - delay(300);. Z0 l4 ?: `) x
- Serial.print(".");
3 A& F7 K- e0 F. ~ - tryNum--;( b/ z$ g: V4 ^
- if (tryNum == 0) {. K& a! D1 p- C: R2 V- F! Z/ a: [
- // 1min% }5 G* D7 f& t: ?& q6 `- l0 @9 @
- // ESP.deepSleep(60e6);# N1 T" i6 K* }/ q
- ESP.deepSleep(0);' }2 K u+ Z5 O3 O/ \
- }" t" i# T9 j% }( V1 I) S6 x6 {
- }
- R) k; S8 X0 z, t& ~ - Serial.print("\r\n");0 r7 ^" K2 h3 `6 w
- digitalWrite(2,1);
. ? Z& c3 d. U6 d5 l - Serial.print("IP address : ");% U" z0 `* r- B( ~
- Serial.println(WiFi.localIP());
4 R4 y$ ]- f, E) i3 A- m3 V" `4 C - server.on("/", HTTP_GET, [](){1 I+ H- W2 j" i$ g+ K
- server.sendHeader("Connection", "close");5 f% P1 F( q9 q O2 y
- server.send(200, "text/html", serverIndex);
% B$ C$ ^- E- i7 B1 Z2 P - });
& T% }/ h! x) }' ]+ h" n( x - server.on("/update", HTTP_POST, [](){
/ X+ L& O7 @# i% \ - server.sendHeader("Connection", "close");
1 Z) O( U- J7 X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 [# k, ` `- W; |) F7 b6 ]; x - ESP.restart();/ d8 l0 S* M9 L* t5 h
- },[](){. |: J. C5 S0 L2 o2 x
- HTTPUpload& upload = server.upload();7 Z: i: U& o# {8 ~9 k
- if(upload.status == UPLOAD_FILE_START){
3 a4 C" s( S0 e& _ - Serial.setDebugOutput(true);$ P$ c1 R; Q2 Q1 a
- Serial.printf("Update: %s\n", upload.filename.c_str());7 K% ?0 P9 W+ |2 ^3 \& |4 c& C# ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ F0 K* s- |4 j! J/ C
- if(!Update.begin(maxSketchSpace)){' m( s7 X6 U, A) p( P2 j
- Update.printError(Serial);
- w7 i& H" P/ W9 n7 Q$ q. q - }
: g; y- J& T7 V5 _8 G( ^ - } else if(upload.status == UPLOAD_FILE_WRITE){1 S9 }9 c5 j8 a: ~5 E, A# z3 K
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ S/ u9 z7 r. o7 C: Q
- Update.printError(Serial); ?6 B) } K7 R# b& z
- }
v. h5 e [: V% G* k% ~ - } else if(upload.status == UPLOAD_FILE_END){
) I" {! c2 y K, [/ U7 e - if(Update.end(true)){
' T9 ` Q9 F# y1 f: [5 F/ q3 [6 q+ S0 k - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ r" P# I+ N6 T0 D - } else {% x. B; ^4 r( d1 l) s) u" m; Q
- Update.printError(Serial);* e4 t& K( N7 Z1 e1 `4 x0 H% A
- }
0 o! s. \- S. w! s* F) X& v - Serial.setDebugOutput(false);( o, a3 ~% ~* \7 B+ }
- }
' b5 J; \1 x" K# d - yield();
5 I" i9 O ~9 x4 ?6 O, O8 n | - });* @2 f0 P4 d/ x+ \" U5 x% U5 Q6 X
- & m+ H+ i+ I$ k h4 z9 s" a/ ^
- digitalWrite(2,0);8 W7 Q2 y- k/ i: p) j% V6 S, t' m( d$ f
- mainAction();, J, L& v5 c3 B& {: \: C
- if (digitalRead(0)){( e8 x. M+ H% y4 D9 i5 E& o7 F
- ESP.deepSleep(0);, r: Q! Q# S2 n" Q2 D$ M
- } else {
3 R- x- J0 T, R7 ]! s3 S - server.begin();& k* O6 J; M( y1 I1 h
- }: ]8 |8 X* V2 e5 k' J- |) m
- }
+ Q C; s$ m6 Q; q; X" _+ A - void loop() {
) z, T' [% f. B# s+ | - server.handleClient();$ u% S$ q' |& z
- delay(1);
5 S8 O& R, \ {0 B - }
: T# q/ U* _% `- p: [1 F# [ - String doGet(String url){5 V, ]5 S0 w+ v; f4 n" h9 d: _
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. Z" K5 l6 S! e& L/ i - HTTPClient http;+ \% ~4 {# H6 s) A) x/ F4 d c
- Serial.println("[HTTP] begin...");& U5 k5 v9 z1 L4 q, w
- if (url.startsWith("https")) {
6 E$ x6 B- G' J$ T8 w8 A( u$ b9 q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 ^7 j0 @" i; K$ U, U$ ?. p) X
- } else {
' F. a( \$ U/ d( w$ b - http.begin(url);/ `- `$ ?; |# b' [* J+ ~
- }
6 ~5 A; A. _! E - Serial.println("[HTTP] GET...");
6 c" B1 k3 ~7 `: M - int httpCode = http.GET();1 _! V/ G6 H2 ^4 n
- if (httpCode > 0) {; [8 J5 U! L2 r- b6 u0 M
- Serial.printf("[HTTP] code: %d\n", httpCode);2 ?/ E5 q/ L7 }- c3 Q5 {
- if (httpCode == HTTP_CODE_OK) { Z- m! `6 N6 U' S+ `
- String payload = http.getString();
3 e3 R, B* }6 L% o# w$ D9 [) N5 f - Serial.println(payload);
. R }# k, ]3 {) s- a. i9 L! f" K - Serial.print("\r\n");
% Q8 q8 _" Q; `6 _: ~ w - return payload;0 N* j1 m0 [; S2 H: u
- }
1 w; [# Z: r3 K7 m8 t+ T5 E2 T - } else {
" F* k* j4 v- K: o4 [1 g - Serial.printf("[HTTP] GET... failed, error: %s\n",9 D* N1 h, v7 W K
- http.errorToString(httpCode).c_str());7 \0 }; q! y- [2 L! ]# z( K
- }
( f' ^# N% g* G: W; k+ I( J - http.end();
8 Y, G1 w, H8 w) |# c - return "";9 u) X5 r, m! _: r
- }
4 c; j2 ^! t& ~' k; b# P9 Y - }
0 U! e! F2 c# A) \ - void mainAction() {- K+ T& n" s$ E9 s5 B
- // 发送请求
% f) |) X8 V" i. ^+ Y - doGet("http://google.cn");- i8 u! z! Y& ~+ N
- }
0 F# e6 s: Q [% q
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