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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)
7 T8 Q, P( x' H8 v3 F M. Y- #include <ESP8266HTTPClient.h>3 M% y1 c! y3 f
- #include <ESP8266WiFi.h>
8 W) ~& E$ O1 v - #include <ESP8266WiFiMulti.h>' v3 K- a5 f. x6 d
- #include <ESP8266WebServer.h>
3 E* ?7 {' Z+ s; x - #include <arduino.h>
& V3 e! b9 \7 v# y1 J - ESP8266WiFiMulti WiFiMulti;
# C7 e- B. I! B - ESP8266WebServer server(80);' U( u7 Z- r$ S4 g- r4 }" t8 I0 W0 m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; i1 v+ T. L) h _+ K - ADC_MODE(ADC_VCC);
8 y- B6 k6 p7 p' ^) j2 V x! n - void setup() {
# l- [ m( |! q( m0 s - Serial.begin(115200);& {+ ]; r) N+ e8 P6 e
- Serial.print("\r\n\n");
- g& a( M, [6 Y% X/ D# @9 s - pinMode(2,OUTPUT);
- K) _- Q% I) v( n - // WIFI
) y& A. r. f& _/ `* A - WiFi.mode(WIFI_STA);* s1 {; _% Y0 J$ z# w1 _
- WiFi.hostname("Sparkle");0 U3 E: k Q* @
- WiFiMulti.addAP("wifi ssid", "wifi password");
8 Q5 {- L/ k$ s - int tryNum = 15;
8 {& j- m8 E' \ `2 e, P1 k - Serial.print("Connect WiFi");
& w2 \* f" L3 q2 ?$ ], V6 n! J - while (WiFiMulti.run() != WL_CONNECTED) {' p) e1 ?; N8 u+ L! Y1 P4 |
- digitalWrite(2,0);
# t$ z5 q7 z( { [ - delay(200);
0 M; u; K6 ~# Y* \6 Y' P - digitalWrite(2,1);8 A: S+ ~6 Y2 z1 s3 B
- delay(300);
5 g E' O) f; ?; Z( ]% _ - Serial.print(".");
9 n- Y' ?- t+ E' g b - tryNum--;
; O) |2 L! Z5 g6 H4 c" n - if (tryNum == 0) {
* f6 X% B1 c5 T, i6 n) z# } - // 1min
- j; i6 [- H& d; F O4 d - // ESP.deepSleep(60e6);
) e4 r. l+ ^& c ~ - ESP.deepSleep(0);
, j, V0 i; S8 Q - }
1 c8 N1 K/ D9 {# `8 ~3 V - }
0 p. h0 S D! z& n: `6 y - Serial.print("\r\n");
6 e8 [* I8 t+ y3 u9 j. `% K4 B - digitalWrite(2,1);; ?, O- u; s# d. y: ~
- Serial.print("IP address : ");
) B" k" q5 l7 G3 A O5 B: M - Serial.println(WiFi.localIP());# X# ~, t3 L* v( c- Q1 e) Z
- server.on("/", HTTP_GET, [](){+ y# r5 ?2 F2 j
- server.sendHeader("Connection", "close");
9 e3 W+ V x/ M+ u6 j - server.send(200, "text/html", serverIndex);
( p! H+ @% _4 \$ t" a - });4 ~& W9 h( f; ?+ m y- G+ v
- server.on("/update", HTTP_POST, [](){& ^# R' P. b$ u1 M2 f! Q0 T
- server.sendHeader("Connection", "close");' e4 V7 _3 ]& C2 z" F4 j9 b, W) B" b
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: C( x6 Z. _5 X$ v+ ] - ESP.restart();; `9 R1 R) {, B% a
- },[](){# ?+ [7 P; w" j- w0 o+ ^
- HTTPUpload& upload = server.upload();5 S* {8 d' ^8 `% t
- if(upload.status == UPLOAD_FILE_START){
. C7 {# a* U) D! V W0 p - Serial.setDebugOutput(true);
/ Z' X9 b, o3 w4 d1 U, f - Serial.printf("Update: %s\n", upload.filename.c_str());# \+ i7 |- [- d$ ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 C% }6 I n4 Z; y+ u( w9 _6 ?7 U
- if(!Update.begin(maxSketchSpace)){
, B" r' ^' ~. L: x8 R- ~ - Update.printError(Serial);" g* ~( j/ _- F' D; L6 L2 a. R
- }
8 z- W) x5 |6 R4 `/ w# E; h/ y - } else if(upload.status == UPLOAD_FILE_WRITE){! J; T5 M* b6 ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& e' j" Q: J" u
- Update.printError(Serial);9 P; M4 z! x0 D
- }
" M: j7 t5 m8 x! X& { - } else if(upload.status == UPLOAD_FILE_END){& `( q0 Q! k" [& G- U4 D$ c& `
- if(Update.end(true)){
% h0 s" c$ Z6 P9 b( O - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. q. E0 C: U3 P4 u- @/ z$ t - } else {: j( [2 T! v3 g# W
- Update.printError(Serial);
' ^3 }8 g, n+ O! z( U( r7 b) U - }
7 v4 v5 m' O/ p: u$ x4 W - Serial.setDebugOutput(false);
8 Y5 T1 n1 S/ |9 ]/ N {9 v" z" ? - }
, _) @5 y2 W1 B) o6 p - yield();& l( P/ d) D2 t+ ]& _
- });6 Y) _: c# P' G
-
/ e4 q+ \, F" ?! ~ - digitalWrite(2,0);4 N7 f' f! Z N$ m5 v3 A4 [
- mainAction();3 H6 |0 M- K* @; v8 h: q
- if (digitalRead(0)){* F; e# r8 l) q* V0 s/ m
- ESP.deepSleep(0);
0 T. o* r2 {" u - } else {! A7 }; w; d. \9 b S8 ]2 W/ E# @
- server.begin();
4 b5 |, |" _$ _! [" x [ - }
( [; d0 o* W8 G2 A/ c - }6 O7 t- i6 i% O
- void loop() {# W/ B9 w9 }7 y1 C9 f% Z
- server.handleClient();
# N1 o, @( y; ?+ Q9 _ - delay(1);
+ r7 x7 L0 n: }) Z - }
) K, z: ]# k3 O3 U0 j. o1 u2 h - String doGet(String url){( ~0 _% e! I( K: t3 N
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! A/ C" \* y! i' J - HTTPClient http;% P+ ^/ J% C- Q6 W. J" G
- Serial.println("[HTTP] begin...");
2 F$ P: a: A2 B6 h - if (url.startsWith("https")) {
& T( s; t% e+ a- Y& s! E - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* [5 C/ N/ R3 V. C4 \! Q T: q6 X
- } else {
( Y# F7 ^1 c5 r% P$ L - http.begin(url);
R! q7 {# H! Z* `8 t, K - }
/ M4 h; ~0 v- _1 O2 G - Serial.println("[HTTP] GET...");: X- w. M R6 T2 m) V- Y. _
- int httpCode = http.GET();
& R2 k* S/ j0 b" N8 E - if (httpCode > 0) {* A% K0 T% i1 U" ~
- Serial.printf("[HTTP] code: %d\n", httpCode);" ^$ a/ `( p5 F" T- N/ i
- if (httpCode == HTTP_CODE_OK) {
0 ~- o( c1 U+ Y% v - String payload = http.getString();9 |7 m! t- P1 l2 a
- Serial.println(payload);6 H' [1 P' g, m. g3 f
- Serial.print("\r\n");
) z( b; Y: H1 C" E, V - return payload;
6 u1 T! Z+ h9 Q7 g* i k$ I - }
6 N9 Y8 x9 U% r1 `( f" Y" l4 d - } else { E. K5 ]# v1 O( y
- Serial.printf("[HTTP] GET... failed, error: %s\n"," F% h! G. U% k4 {& g/ X
- http.errorToString(httpCode).c_str());
9 G- D* ~5 L5 R9 F" [# n& d - }- {$ k. ^: p4 Y' _) f I
- http.end();
% l+ j) o- c5 ` - return "";
* ^ |2 d2 C9 @ - }/ j7 L2 u( D+ Z. I$ ~
- }
0 D7 C# Q8 M7 I - void mainAction() {
* c; q- ]1 Q2 I2 z1 i3 G; R n - // 发送请求# {; w/ w/ O4 i1 M+ d) N
- doGet("http://google.cn");
$ F/ d% f/ X: }6 ? - }
! G- ]* D2 N$ f) O2 Q/ L
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