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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)8 l" P R7 j4 E4 h. o+ h
- #include <ESP8266HTTPClient.h>; ?7 O. E) z) T/ t6 k# \
- #include <ESP8266WiFi.h>
$ B `. y2 i% c7 R! D# ~. P - #include <ESP8266WiFiMulti.h>
2 m) h# V4 j- _: [) a0 m/ @ N l& L - #include <ESP8266WebServer.h>
{9 M4 L4 Z0 W2 X. { - #include <arduino.h>. M9 u J( J! a1 t9 n, E7 C
- ESP8266WiFiMulti WiFiMulti;
7 z5 x' R' Q8 @. A7 n! B - ESP8266WebServer server(80);0 M$ X) L2 S( ~0 _5 V! O' s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 Q n" R; b! \# q4 k - ADC_MODE(ADC_VCC);
) Y2 C9 F. @6 O3 `/ h+ I( b - void setup() {: q% n) x- K# R# m( |" d
- Serial.begin(115200);
2 X' Y) z' v! X" Y# I8 ]- c$ } - Serial.print("\r\n\n"); ?2 H. {+ l. Z' N
- pinMode(2,OUTPUT);& B" s% O4 E8 a9 c( |9 k
- // WIFI# V) w4 p- s6 f) z7 W' n) f
- WiFi.mode(WIFI_STA);4 N" ?5 n. M' o- i: `& v5 z+ y
- WiFi.hostname("Sparkle");
; r3 ~+ _& k; v - WiFiMulti.addAP("wifi ssid", "wifi password");) U! _+ {. q/ e% i* u" ~
- int tryNum = 15;
# q2 \# y! y. Y- O; { - Serial.print("Connect WiFi");
5 x# j2 l1 r j, b6 B, W# x - while (WiFiMulti.run() != WL_CONNECTED) {7 `7 v8 a4 O k' j$ H! F
- digitalWrite(2,0); b/ y. M( Z' }' M% {# l& O" \
- delay(200);
7 T9 U) U/ p5 |6 _ - digitalWrite(2,1);0 b& u9 ~, `6 `/ F
- delay(300);
8 v" g. { s) A, Q - Serial.print(".");" i( b6 z$ M4 e( M0 l2 v1 s$ ~# B
- tryNum--; W( q: {1 |5 L! m& ^/ _# U! Y8 y/ N
- if (tryNum == 0) {
* G! O5 |" K3 I1 |, a% r9 A - // 1min
* t" y5 w! D$ s- l4 q0 B - // ESP.deepSleep(60e6);2 t; x4 b7 o+ g. _1 |1 X/ R
- ESP.deepSleep(0);* D8 w- G# ~9 P8 E5 j, E
- }. ]) q$ q4 U5 o/ W5 X5 V0 q% A/ U
- }$ Q. `2 D% i6 c6 b5 v; ]. O* t0 A, C& Z
- Serial.print("\r\n");' [( Y# |% U; [
- digitalWrite(2,1);
% p n! l! d- Y$ H* ^) ^, ~+ C - Serial.print("IP address : ");2 d" N0 G; D) [
- Serial.println(WiFi.localIP());
) i q. k+ D, z$ [. p* m - server.on("/", HTTP_GET, [](){
5 s8 H4 K7 w4 W - server.sendHeader("Connection", "close");* Z& i: A- \0 n) x0 m3 }
- server.send(200, "text/html", serverIndex);
" p/ k8 Y. F/ A* U d4 V - });. y# a R& H- ]7 q
- server.on("/update", HTTP_POST, [](){/ u, f+ k/ G" x4 u; Q' l
- server.sendHeader("Connection", "close");. o) G) `9 `- {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* l' Z$ d% M- v, E% P
- ESP.restart();0 l) |" s# P, x& ~& G2 z
- },[](){
1 P; Y+ _/ w4 }+ J5 @ - HTTPUpload& upload = server.upload();& P1 r+ ]! o, q7 v4 n, w1 j; J3 L
- if(upload.status == UPLOAD_FILE_START){3 v) X* G* m$ r
- Serial.setDebugOutput(true);/ q$ p4 e; B& q8 K2 s
- Serial.printf("Update: %s\n", upload.filename.c_str());
; y. t/ l$ R0 W# a% o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, @6 ?! n1 X9 H+ G
- if(!Update.begin(maxSketchSpace)){ v" K) g) c' i9 j0 Z0 V0 F
- Update.printError(Serial);
" H* Q5 Q4 C: s( `# [$ O- g6 f - }
" a C* f/ P# Z4 z" n - } else if(upload.status == UPLOAD_FILE_WRITE){
9 ] R* _' r, Z+ J4 Q9 y2 U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ u5 G& m1 g7 L& p9 ^4 a6 G5 |" f1 b3 {
- Update.printError(Serial);
. a2 H2 [( J7 z - }
9 ?( I; m$ V( F* g/ X - } else if(upload.status == UPLOAD_FILE_END){
! T+ v, Z1 p& r" J( u - if(Update.end(true)){
, z! Y' \. g5 h% r% L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# a/ f6 E/ O* ^! r, @ - } else {
* S# j0 b& K+ u4 _& p8 K0 R' t - Update.printError(Serial);- Z0 \" q/ R) K+ b
- }
" C [4 }- k, B: D. F w. a - Serial.setDebugOutput(false);8 @3 S7 }; R* x
- }, I Z) d5 T4 x$ V5 z: p
- yield();1 T( k8 L8 b: M1 J" h' U [. j
- });9 s5 x1 K, |; U7 G! {
- ( d0 s: I& `: x/ U
- digitalWrite(2,0);3 _* e0 r1 Y" s4 ]
- mainAction();
7 W: ^4 u6 c$ f9 ~; b6 t - if (digitalRead(0)){ L- _: f. Z- F
- ESP.deepSleep(0);
9 \3 U' f9 `' x4 Q# Q - } else {, U* Z* w/ I+ O: M/ X4 E8 Y
- server.begin();& L& n0 x9 K+ Z+ i& A/ ?
- }
! D1 K: o+ F6 D7 g - }
# @7 o% I, N* f) O, {& A5 B4 [ - void loop() {
" T( t0 q, T' [; Q- _ |& ^ - server.handleClient();
s! i: _6 B' U8 m# { - delay(1);9 n. b. y! A6 _0 z3 d' L
- }
' H0 s0 B7 d6 N) J - String doGet(String url){7 Z$ t8 l0 V8 i: T7 G& G, E( G4 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
# h) }8 X* s8 B - HTTPClient http;% {- C+ ^7 W& P4 L8 f4 A6 U
- Serial.println("[HTTP] begin...");
9 ~+ b( i) ?/ w$ \; o3 K - if (url.startsWith("https")) {
+ q- t5 U0 p! e" |. z( n3 t+ Q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& h; b0 Y! d; x$ S - } else {0 ?+ Z* I! _% w- A: V3 k8 ^3 g
- http.begin(url);
* q i+ v! w6 M+ L4 J - }
4 {7 v( Q# p6 x; j - Serial.println("[HTTP] GET...");) j: t2 Z' u0 H$ m
- int httpCode = http.GET();0 H/ _" i' h, i! x6 Q7 ?3 I6 k
- if (httpCode > 0) {
! P. f$ |8 E+ a8 I* a - Serial.printf("[HTTP] code: %d\n", httpCode);
& d! A% z8 f. C6 z, r ~& t7 L5 [ - if (httpCode == HTTP_CODE_OK) {: p% R0 e; q6 V5 v. ^
- String payload = http.getString();
- j. k0 B9 e1 k" ]# G - Serial.println(payload);; n8 p% K$ {8 D! c
- Serial.print("\r\n");
" R$ H5 t" n, q6 g, c$ R! ? - return payload;+ m! S( Y# l) w" L
- }2 s$ Y/ D8 u, f8 }0 Z
- } else {
. E% j7 c2 W) G' p- E8 \ - Serial.printf("[HTTP] GET... failed, error: %s\n",
: t8 H8 ?' A" @( O8 |7 h2 | - http.errorToString(httpCode).c_str());
+ P; E+ S5 J, @- ]' e s, L9 r - }
6 d4 L0 x/ o! S2 P. ^ - http.end();% L& }1 j" J, d- v% ^* C; R
- return "";* ^9 H. k5 [# {" s% T. `( P
- }; R0 J4 Z5 l n- _) O4 B: b! C
- }/ W, ?( }& T# x% i% N. ~. u
- void mainAction() {
+ Y8 h7 h7 N2 e, D - // 发送请求7 }' C1 M9 r2 M
- doGet("http://google.cn");1 i( K* b' S7 j8 p
- }# T- i& R! E8 m. O) S7 V
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