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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)
) k9 A: y. z/ W+ T8 C. ]; Z- #include <ESP8266HTTPClient.h>1 Q* _, n3 I7 C) u
- #include <ESP8266WiFi.h>
8 ]8 M' ^5 Q) L0 Y - #include <ESP8266WiFiMulti.h>
+ u, L7 @- v9 l/ u) }0 x6 T - #include <ESP8266WebServer.h>
: _+ _- X5 m" G* H" d7 j u - #include <arduino.h>1 @. Y* w" ?2 a% R. w9 D
- ESP8266WiFiMulti WiFiMulti;
3 \2 o( A1 U9 }; ?, A! M4 | - ESP8266WebServer server(80);8 ]7 p, w& Z$ ~1 R9 h+ r G
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ V2 m/ s% W6 }% P& @8 u2 I2 h - ADC_MODE(ADC_VCC);
3 x& S: Z& W7 F9 y - void setup() {: }4 ~. _( B9 h) o
- Serial.begin(115200);) Q6 v: U" V. Y! A9 m& k
- Serial.print("\r\n\n");1 K. ~ E$ x4 X
- pinMode(2,OUTPUT);
* E5 H# D' {# U( K - // WIFI
6 O, V5 h4 u& r9 X) y; y: ~ - WiFi.mode(WIFI_STA);
( d% k/ X5 t- Q ]/ i - WiFi.hostname("Sparkle");
, K2 R7 r' E$ B+ U - WiFiMulti.addAP("wifi ssid", "wifi password");6 P' P8 }: Z) ?1 A% x
- int tryNum = 15;
# p; X( U' m8 N3 e - Serial.print("Connect WiFi");
f! _7 ^: l0 N @+ R - while (WiFiMulti.run() != WL_CONNECTED) {
9 e, G! F: Q$ x. ^ - digitalWrite(2,0);9 L& G7 n7 x1 P$ S
- delay(200);2 g# @% @* H l/ m" L' O7 W
- digitalWrite(2,1);! N% B$ h. S1 e( |4 X
- delay(300);, I) \$ l# T* [! N1 k
- Serial.print(".");
+ g0 m* E, l+ h - tryNum--;! d. n7 M* `* S8 l& z2 q4 N$ \
- if (tryNum == 0) {6 o6 \( Z X# l; [8 x
- // 1min
0 g6 ?5 s8 j% \/ i( X- h - // ESP.deepSleep(60e6);/ G. P1 K% n$ E0 i
- ESP.deepSleep(0);/ |8 S8 C/ ^/ Q1 F" L$ ~
- }
/ M5 K( \, {9 G2 o4 D - }- f" C+ G! I f' d: \
- Serial.print("\r\n");
, b- T4 J S* n3 Z4 y& m* f - digitalWrite(2,1);0 R3 V; E) s* _ j- X: m2 O
- Serial.print("IP address : ");/ n, H% a% q: h- W4 Y: e
- Serial.println(WiFi.localIP());- E$ H! N8 s; O: V
- server.on("/", HTTP_GET, [](){
- {$ `, Q; v3 B, O - server.sendHeader("Connection", "close");
" w5 Y4 |- j ~, u: m+ W. f - server.send(200, "text/html", serverIndex);
/ o* d( ~. y7 ]1 \ - }); g0 Y, @% ]" O$ J8 h7 M! x
- server.on("/update", HTTP_POST, [](){
# c% R8 d( i1 C. m - server.sendHeader("Connection", "close");
$ T! F: b& r ]% }* I1 M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- |9 y& K7 R) d% P1 j% e+ h$ K - ESP.restart();$ }+ G6 F; F( \7 o( |- I! t$ l# G4 k
- },[](){& k6 K& e* T/ N2 D) A
- HTTPUpload& upload = server.upload();* @) A; t- ?$ D5 U. s M0 U! [
- if(upload.status == UPLOAD_FILE_START){
: k, R% d. W/ K: t7 M - Serial.setDebugOutput(true);
+ W; I; ]9 H; \& a8 y - Serial.printf("Update: %s\n", upload.filename.c_str());" p! x: z9 s( Z/ v8 @' j
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 E$ h3 w. M: N Q4 B9 s& n$ f. q - if(!Update.begin(maxSketchSpace)){' N$ l0 B& y8 J' q; C; g
- Update.printError(Serial);" g1 `; c9 D+ @- Z S
- }% _1 `( u# z {# K2 j
- } else if(upload.status == UPLOAD_FILE_WRITE){
; x3 s; {, d! }+ d3 o - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& o7 U9 Q `; i3 O; K+ c2 Q
- Update.printError(Serial);5 J- m; G( m" F$ f8 Z7 f _) M
- }4 O) N5 f1 I T: Q& D* n5 W
- } else if(upload.status == UPLOAD_FILE_END){* }5 q& P& [$ g8 L# z2 p. m$ v5 ^
- if(Update.end(true)){; `3 j* y( N# n% g' @5 q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* a! ]" I4 |5 Y( j8 S
- } else {; q4 J0 E9 P' c" K3 V5 A& j9 X
- Update.printError(Serial);" U4 r0 p: p( C, C. x. L+ C
- }
5 M3 V6 D T# J- ~: J# R+ \; W - Serial.setDebugOutput(false);; @6 t; L3 e- M% B7 E
- }
! ^' T0 A7 T# {4 m g0 F - yield();
; a' m8 w6 W1 j+ W) x) V1 |/ i v - });/ R% o2 D( x% f* k
-
+ X6 u0 k* D; D! [+ G b- [ - digitalWrite(2,0);2 M2 j( } V& K5 o! f7 `6 @! R) `
- mainAction();
& ]$ E3 g; E5 T% ]9 f - if (digitalRead(0)){# I* M# H& N! k( a
- ESP.deepSleep(0);
6 ?! ^1 w1 D) ?! q! \5 } - } else { P5 {& \0 Z2 e5 k, g
- server.begin();
5 E1 @/ s, N& W- d5 S - }* |3 A7 d* r- c4 B' G+ e- I
- }
8 A) { C% D& I- T7 E - void loop() {
% } r; ]1 t7 ^+ x8 u - server.handleClient(); n* y) d* m2 Y) t1 g
- delay(1);
- f# X. i. m V2 ^ - }0 m( j! W: n P h
- String doGet(String url){
3 R! P( `2 _! z( D( s1 F; F( ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {
. O) }2 ]! Y- y1 {+ z - HTTPClient http;
% y' I v9 H3 T) o( S W2 ]4 ` - Serial.println("[HTTP] begin...");: Z# {0 u6 @4 W. b
- if (url.startsWith("https")) {% W( s o: e/ S: b- D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! G/ m" ?* ~2 j( C3 B, O - } else {
0 [1 v. Q' E. P9 }0 |+ P - http.begin(url);) I6 C/ R* C4 \( ]" [1 H. v8 `
- }
: e$ e% X4 W) }! n - Serial.println("[HTTP] GET...");* F4 i3 W; X4 {
- int httpCode = http.GET();
! b+ a8 _. Q1 S5 k. M' z) ]$ ?3 p - if (httpCode > 0) {9 x2 K- f# V; n* ^' ]6 O
- Serial.printf("[HTTP] code: %d\n", httpCode);
; `$ H$ a! y8 a2 L9 @) g8 i - if (httpCode == HTTP_CODE_OK) {" h0 ~7 k |& o8 i t# q
- String payload = http.getString();+ e: }' s8 ~, r: A9 g
- Serial.println(payload);
" O9 l& U! F( J0 e* w# G - Serial.print("\r\n");% E, H* Q7 u, { ]
- return payload;. D% t" b* J( m
- }; W* ^" Q4 X& w
- } else {9 A0 y1 }: h( ~, J# [; ~2 b u
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! E; s) F; U9 {$ {4 `7 B8 r- P - http.errorToString(httpCode).c_str());
, G* O+ a0 |/ T - }
5 j( q; g2 J. i) K - http.end();4 _- X' J0 ]2 p! Z, I% Q9 Q. O, ?
- return "";
" g* _5 E" i' k" N0 u" m, R+ T - }& A8 n% a( f* }$ Z+ A+ \6 ~
- }
8 z1 t: ~1 m7 K9 r7 _' P G- j - void mainAction() {" r% G/ w* P% [& ]. \7 W5 ?
- // 发送请求3 C+ E. S8 Z. M2 J: v0 B" x
- doGet("http://google.cn");# ?7 Q C; C" l8 P& q
- }
9 |/ M3 b' v' U* q
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