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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)
& C9 T* Q, ?2 X3 V( W9 g- #include <ESP8266HTTPClient.h>' E% {3 c' z# ~& c' G1 i
- #include <ESP8266WiFi.h>7 Y1 J& m* E0 }, Z) f) t' y
- #include <ESP8266WiFiMulti.h>
! g0 {; J! P0 L i3 G, O) t - #include <ESP8266WebServer.h>
6 L1 M+ A2 f! g5 n8 Q - #include <arduino.h>. q. k3 v V3 U2 l
- ESP8266WiFiMulti WiFiMulti;9 C/ |, [; q0 M9 S. t6 a: A
- ESP8266WebServer server(80);
- E3 i! { W* t4 J4 e - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 z3 d' g2 b5 S3 d' M
- ADC_MODE(ADC_VCC);" G% l0 K: z. n$ F
- void setup() {: [3 p7 M( ^& }/ u4 c" |9 {
- Serial.begin(115200);
+ {5 `0 R4 m. k4 H" P% M9 m g4 i/ t - Serial.print("\r\n\n");6 a- B# X: ~7 X5 |
- pinMode(2,OUTPUT);
+ ` ~4 n3 y) T; k" M - // WIFI
/ z L: E: f$ h; _% { - WiFi.mode(WIFI_STA);
) V% g ]8 v4 E$ L5 I - WiFi.hostname("Sparkle");5 L$ \# L1 p! @: T0 g
- WiFiMulti.addAP("wifi ssid", "wifi password");
8 h2 t6 b8 y- v3 l; C4 B0 Z - int tryNum = 15;8 O6 i' Q/ e4 v- y3 ^
- Serial.print("Connect WiFi");: @2 O* B; v$ d9 z
- while (WiFiMulti.run() != WL_CONNECTED) {' Q6 O7 f: F6 b4 Y" e) y5 v
- digitalWrite(2,0);
7 N4 U; j8 i4 n - delay(200);
4 Z# C' F Q& _1 p+ a2 B - digitalWrite(2,1);. X% z5 Z! U0 w
- delay(300);/ y b$ ~' @5 ^8 G7 z' Z
- Serial.print(".");" z$ q0 H$ @# {% N3 d
- tryNum--;
8 l, i8 T. i% J. Q: N- a9 h - if (tryNum == 0) {
2 P; q. ^" C1 l# r4 g: ]8 k - // 1min1 B8 K% D4 ]; a- J# C
- // ESP.deepSleep(60e6);
# z7 A! s! U. ]& i% L$ w - ESP.deepSleep(0);
( d6 Y& C, m5 n3 M( N. E - }" w/ x* f( l$ q4 j
- }
2 z; H2 [5 l4 o% K+ c - Serial.print("\r\n");
" g) t' q% a0 V% P$ \, H( i - digitalWrite(2,1);
7 B' B! S1 W; J7 G$ D - Serial.print("IP address : ");; U5 C1 h* g9 Y1 h4 g
- Serial.println(WiFi.localIP());
; K8 y0 S1 B3 ] - server.on("/", HTTP_GET, [](){
9 ^, t2 \- L5 p8 s - server.sendHeader("Connection", "close");, ]3 O! U* u2 i# @+ Q7 }
- server.send(200, "text/html", serverIndex);
6 U6 K4 Q. I7 v S- F# k - });
& d/ q$ K8 y. Y" Y$ g' O* ` - server.on("/update", HTTP_POST, [](){
; _+ ]3 S0 e8 M, F" M - server.sendHeader("Connection", "close");( G2 a& P+ _& }5 P9 }. W' l6 r
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. s; I) P( }& _# c - ESP.restart();
+ f/ X8 H/ y7 S( t5 A - },[](){
& Y0 }6 [$ o& R' c$ D" y. q1 f3 g - HTTPUpload& upload = server.upload();7 Y" S' O \6 T- U' f1 {1 l
- if(upload.status == UPLOAD_FILE_START){- r. a/ \, C: |" y9 u
- Serial.setDebugOutput(true);( K2 M8 ]- y# d. K8 W @: |; p
- Serial.printf("Update: %s\n", upload.filename.c_str());
- v6 V1 R- Z8 g# s9 u. n - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: \+ o0 Z$ g% O* a5 t
- if(!Update.begin(maxSketchSpace)){
' S8 V9 i/ ?! H+ O, b9 p - Update.printError(Serial);
3 R; v; r; ?- j* N7 Q4 x - }
+ Q/ E, B7 Q) B- k - } else if(upload.status == UPLOAD_FILE_WRITE){# E3 G5 ?) H9 v
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. B9 i5 T2 c" y - Update.printError(Serial);
4 Q1 R) Z; D' [ - }5 e) r. H+ k6 \
- } else if(upload.status == UPLOAD_FILE_END){
3 d' V' c# G1 ]% f9 \% d - if(Update.end(true)){+ M; n+ V3 N' B/ o: C0 c
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 N' v) ?7 _7 Z9 z$ \) S - } else {. N3 Y' j# q$ m6 a% X8 y
- Update.printError(Serial);
. {& C! E, F$ Z/ B0 v - }
# e! W) X: r# K8 b% Q$ @1 n - Serial.setDebugOutput(false);! ^7 e$ h+ {* ? [6 Z9 k
- }# |: {4 \5 @. d/ ]. r2 G3 n! W
- yield(); {$ E P- `# O, }
- });
% d$ S7 |2 m' k5 I" { - & {) Y: Z! n) d5 F$ P) ?( M+ \
- digitalWrite(2,0);
% ?6 h% ^1 S8 U% k7 ~6 h" B/ C! Z - mainAction();# f0 O; W; U5 t
- if (digitalRead(0)){
/ Y7 g7 W5 ^) U' u1 p0 F, N6 r - ESP.deepSleep(0);
5 s) ~* K8 A2 \; I- m9 E - } else {
: Y# g& C6 n+ u' t - server.begin();
+ O \5 U0 x7 \4 q: w - }
; S8 b5 z7 u9 k - }
~0 P/ o: _# _2 E3 k - void loop() {
a6 p, v) M+ } - server.handleClient();
' {1 H. Q. r. g2 H - delay(1);/ [3 L/ Q9 Z6 J; z* m& H) d3 U
- }
; m" Q7 \$ K2 A6 R4 I* x - String doGet(String url){* F1 F8 A2 b- v* h' O
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 P r; g7 ~+ k. j/ h5 a& d - HTTPClient http;. D o) V% ~: z8 @2 ~) S, f: ^- o; _2 ~
- Serial.println("[HTTP] begin...");! h, t' Z5 w- c
- if (url.startsWith("https")) {
% C. }2 T5 w8 r: _ n& V% ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. a% E3 q, h, J. X - } else {3 g* }, s' F+ { v7 ~
- http.begin(url);
3 N" j7 `# {9 [ - }- l5 {8 M! \* i( J- }
- Serial.println("[HTTP] GET...");$ i( W$ z6 P: [8 T) J6 K
- int httpCode = http.GET();
5 u# n1 j+ m, W/ W - if (httpCode > 0) {
7 P1 d! o% [6 M* k1 p4 S - Serial.printf("[HTTP] code: %d\n", httpCode);
* [1 r4 i) U5 k; I9 y! D8 ^ - if (httpCode == HTTP_CODE_OK) {3 n) w6 G7 O+ P" k C
- String payload = http.getString(); O3 ?3 S( L; m; F5 S7 u4 j2 o6 E
- Serial.println(payload);
6 q, ]" z. E; N - Serial.print("\r\n");- u" A9 j$ i! E9 M, e% E
- return payload;
9 D8 u! B2 T! l) b' A( j - }3 a- d/ c8 S6 v! Q
- } else {
4 d; G) w) ^8 t+ C* v9 V7 a - Serial.printf("[HTTP] GET... failed, error: %s\n",2 ~7 d+ F8 _; A C3 r$ L1 a0 D
- http.errorToString(httpCode).c_str());4 \% c' l6 L5 w# D
- }9 ^* Z, a. U7 z" J: _5 R5 o1 _
- http.end();0 o& N% k' ?- D8 {
- return "";
" C: h/ j# T) H- B3 I - }
" a) E$ z' v7 K - }/ T' w; |3 H5 a) ^4 T+ M, U0 ^8 d
- void mainAction() {4 L3 W9 h1 f2 K6 d3 c. `) }
- // 发送请求
) A/ e9 r5 w/ Z8 q - doGet("http://google.cn");( z# |: D0 }8 W
- }
, B9 e* k! ~. s
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