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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)
' ~, g% g- Q! O! t- m9 q9 `- #include <ESP8266HTTPClient.h>2 X3 u) F9 G4 z; i5 ^# Q
- #include <ESP8266WiFi.h>
- g- p, n# ^) E8 c" p) w1 F - #include <ESP8266WiFiMulti.h>
% j$ q1 a. K! n, q+ [* ^ - #include <ESP8266WebServer.h>) L: G1 H4 ?2 i' ]* M% C* ?
- #include <arduino.h>
0 T7 f! H3 J" g H. ` - ESP8266WiFiMulti WiFiMulti;5 \$ X6 I! M5 Y& d; d$ e2 i
- ESP8266WebServer server(80);
# J5 B8 e, p3 a. N - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; P) Q7 t4 V2 v1 d9 E - ADC_MODE(ADC_VCC);
# C* ^2 i# L# ?% A - void setup() {
) l/ H, D: P3 E8 b- ^ - Serial.begin(115200);! e% S, C6 r2 _: R2 d/ D/ A, V
- Serial.print("\r\n\n");
5 d% j0 }5 E- z" f$ K7 G - pinMode(2,OUTPUT);
; Z9 ?( x; ]: k3 U - // WIFI
& I, k* |3 q9 Q8 W" E/ K - WiFi.mode(WIFI_STA);
' F5 c& g5 H6 L2 Z - WiFi.hostname("Sparkle");6 \' \6 n2 [7 j4 b0 P
- WiFiMulti.addAP("wifi ssid", "wifi password");
4 y }, D: J$ n- } - int tryNum = 15;
% w7 P/ e( [! |! e+ T - Serial.print("Connect WiFi");, R5 R9 k; V1 j: e0 A0 j, }
- while (WiFiMulti.run() != WL_CONNECTED) {
1 w8 G S# q. b, H5 N" e; Z - digitalWrite(2,0);
2 v# l6 c* F0 U) [5 }' l6 O - delay(200);8 H$ S) m$ ]5 P5 \6 j* _
- digitalWrite(2,1);$ w6 L7 H5 X* {, f/ O: ~1 T2 k6 e
- delay(300);# z3 O' U V" t1 h1 }5 l
- Serial.print(".");
$ x0 j' J$ z$ ] ~+ d4 i - tryNum--;3 M& N% p/ s7 N, \
- if (tryNum == 0) {
6 L- t/ |1 J% U9 ] - // 1min1 \" u+ L" z2 k7 M1 [5 u( V
- // ESP.deepSleep(60e6);
6 H2 |* y3 i% p) v - ESP.deepSleep(0);0 c' o* j9 X- {
- }5 T, W3 S2 Q$ x. T9 M q) k4 p
- }
6 M& @! l- y8 K% Q9 }; b - Serial.print("\r\n");
8 O6 w8 C. G( x% ]3 I) _) j# ^, F" i - digitalWrite(2,1);
/ s3 {( N4 c d7 a+ r5 _ - Serial.print("IP address : ");! |6 n2 e# k( E0 U8 N+ I
- Serial.println(WiFi.localIP());) f/ c2 p) E4 o2 M
- server.on("/", HTTP_GET, [](){
* a! d- H2 e: G# Q6 a: O - server.sendHeader("Connection", "close");2 n; R4 ^/ W$ @1 U: N& a
- server.send(200, "text/html", serverIndex);
( P1 f6 B2 Y: j4 J% l - });1 s& O9 k# E, @1 {. W/ e
- server.on("/update", HTTP_POST, [](){
" L6 U1 ]6 m9 _: _: |! E1 \- [2 M6 H - server.sendHeader("Connection", "close");
+ `, ~) w: h9 U* C V - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% a; |" r; j/ `: \ _& ?0 [
- ESP.restart(); ~* c1 L: l4 U
- },[](){- l' t% h, |& q* c
- HTTPUpload& upload = server.upload();; g2 _: q9 C- @
- if(upload.status == UPLOAD_FILE_START){
. T5 X: V9 y' H- I - Serial.setDebugOutput(true);
b% |, v0 v+ K' x4 v* \! h - Serial.printf("Update: %s\n", upload.filename.c_str());
, m. F' m# x! K# u/ [ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" v. H# f! L6 n2 `( T0 z
- if(!Update.begin(maxSketchSpace)){/ s4 g2 m2 r1 h8 X7 M% X# v6 x
- Update.printError(Serial);
0 H6 o% i! z9 b - }+ R- {- M" n% ~" ~& c( i
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ r, }; ]1 A3 Y4 j7 M7 R6 m7 H - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 p i! u) D0 J( o: I9 F+ i
- Update.printError(Serial);
9 Y0 g& P' N E: @ - }
0 E- M" q# ?9 O - } else if(upload.status == UPLOAD_FILE_END){
( m2 G* w* q" Y - if(Update.end(true)){- Q% `( {+ r, V; G6 L1 F- i( y0 t: O+ n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" ?8 a+ _, ?+ A- J: { - } else {# c( e, M) [$ ~% `3 T6 `7 y
- Update.printError(Serial);+ c5 i0 _4 Y2 B& ]% V+ s4 D
- }( [. ]0 [4 ]0 ?" D
- Serial.setDebugOutput(false);
+ H+ V2 l* h' G$ J - }
0 a/ ]/ y+ u7 ?* J+ r$ _4 g - yield();
; y: A/ M8 x/ N% \( ~# b3 Y( U! |. T - });
" d0 y3 k- d2 y2 I9 [1 z1 N -
E6 J0 u: H1 H4 D i; y6 p - digitalWrite(2,0);5 o/ x4 V% b% t" Y2 E& u
- mainAction();
; b1 \0 B& N" M/ e/ y, G- D - if (digitalRead(0)){
' _* B1 ^1 B0 j6 E" c - ESP.deepSleep(0);3 N/ U1 T3 j5 V9 ~
- } else {
2 `6 h+ W8 x A1 g/ v - server.begin();
) s0 s A' m M) c5 h4 { - }
3 |7 r, c6 r t2 J% d - }
# _5 j0 }1 x9 ^1 b8 Q9 c" W2 M7 S - void loop() {, `. f9 N( R6 q+ t; A% m
- server.handleClient();( ~! R% Q, b" Z' p$ k- i
- delay(1);& l0 f/ u4 ?7 S8 [7 ?/ v8 d U
- }
6 C5 e! _' I/ O* i - String doGet(String url){' f, G, m# X5 k2 E1 y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ e7 X/ I/ J" b - HTTPClient http;
: @& [+ A: z7 }7 J8 L! J# d& X; z - Serial.println("[HTTP] begin...");5 Y. v, }! y0 b2 c) L
- if (url.startsWith("https")) {
2 J. u8 e& `$ E3 S6 Y4 M4 J$ ? - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" J. S1 J7 d* [! R
- } else {
7 H, ?4 `, A6 l% K4 z - http.begin(url);+ k9 J# X/ ~% |9 ^- _% Y: I
- }
, N) E9 ~& `; q3 I8 ] - Serial.println("[HTTP] GET...");2 e% Q! s) k5 Q( s
- int httpCode = http.GET();
: Z Y1 O2 j1 H - if (httpCode > 0) {# f6 h$ L% I5 S* E
- Serial.printf("[HTTP] code: %d\n", httpCode);
8 O9 A. K, S, R& ` - if (httpCode == HTTP_CODE_OK) {% i9 o& B! d2 A& L
- String payload = http.getString();3 N7 [8 a% w$ A( a
- Serial.println(payload);
1 j) c8 l' m5 L - Serial.print("\r\n");
% c6 ` Z0 H. Q - return payload;% h* ]! `2 w# Q' @0 P
- }
1 V- W. c( f" V, @: V) B/ K - } else {( ^4 r: X1 ]' a! _3 N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" I: v% z1 G# \# |6 ?4 X, T z - http.errorToString(httpCode).c_str());; G5 E7 o$ Q, p) X# \
- }
; f0 `& ]! V5 ]' |* R# g* n - http.end();
% s9 C5 m8 T- d$ v( w* h - return "";
6 m; Q8 ~; O J+ { - }$ b$ Y! m/ S: D
- }4 S2 ^$ Y9 }4 r
- void mainAction() {
+ D! k# H+ }5 v* I0 _" O; t) k - // 发送请求
' O$ a+ m! m. k/ h. p - doGet("http://google.cn");- J2 e7 s: P8 ]
- }, y' X7 k, l% @$ q
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